| [100] | 1 | """ | 
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|  | 2 | This is the ATNF Single Dish Analysis package. | 
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|  | 3 |  | 
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|  | 4 | """ | 
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| [1080] | 5 | import os,sys,shutil, platform | 
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| [226] | 6 |  | 
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| [1080] | 7 | # Set up AIPSPATH and first time use of asap i.e. ~/.asap/* | 
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|  | 8 | plf = None | 
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|  | 9 | if sys.platform == "linux2": | 
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|  | 10 | if platform.architecture()[0] == '64bit': | 
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|  | 11 | plf = 'linux_64b' | 
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|  | 12 | else: | 
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|  | 13 | plf = 'linux_gnu' | 
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|  | 14 | elif sys.platform == 'darwin': | 
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|  | 15 | plf = 'darwin' | 
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|  | 16 | else: | 
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|  | 17 | # Shouldn't happen - default to linux | 
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|  | 18 | plf = 'linux' | 
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|  | 19 | asapdata = __path__[-1] | 
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| [1171] | 20 | # Allow user defined data location | 
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|  | 21 | if os.environ.has_key("ASAPDATA"): | 
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|  | 22 | if os.path.exists(os.environ["ASAPDATA"]): | 
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|  | 23 | asapdata = os.environ["ASAPDATA"] | 
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| [1080] | 24 | os.environ["AIPSPATH"] = "%s %s somwhere" % ( asapdata, plf) | 
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| [1171] | 25 | # set up user space | 
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| [1080] | 26 | userdir = os.environ["HOME"]+"/.asap" | 
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|  | 27 | if not os.path.exists(userdir): | 
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|  | 28 | print 'First time ASAP use. Setting up ~/.asap' | 
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|  | 29 | os.mkdir(userdir) | 
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|  | 30 | shutil.copyfile(asapdata+"/data/ipythonrc-asap", userdir+"/ipythonrc-asap") | 
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|  | 31 | f = file(userdir+"/asapuserfuncs.py", "w") | 
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|  | 32 | f.close() | 
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|  | 33 | f = file(userdir+"/ipythonrc", "w") | 
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|  | 34 | f.close() | 
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| [1171] | 35 | # remove from namespace | 
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| [1080] | 36 | del asapdata, userdir, shutil, platform | 
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|  | 37 |  | 
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| [513] | 38 | def _validate_bool(b): | 
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| [226] | 39 | 'Convert b to a boolean or raise' | 
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|  | 40 | bl = b.lower() | 
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|  | 41 | if bl in ('f', 'no', 'false', '0', 0): return False | 
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|  | 42 | elif bl in ('t', 'yes', 'true', '1', 1): return True | 
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|  | 43 | else: | 
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|  | 44 | raise ValueError('Could not convert "%s" to boolean' % b) | 
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|  | 45 |  | 
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| [513] | 46 | def _validate_int(s): | 
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| [226] | 47 | 'convert s to int or raise' | 
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|  | 48 | try: return int(s) | 
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|  | 49 | except ValueError: | 
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|  | 50 | raise ValueError('Could not convert "%s" to int' % s) | 
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|  | 51 |  | 
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| [513] | 52 | def _asap_fname(): | 
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| [226] | 53 | """ | 
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|  | 54 | Return the path to the rc file | 
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|  | 55 |  | 
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|  | 56 | Search order: | 
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|  | 57 |  | 
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|  | 58 | * current working dir | 
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|  | 59 | * environ var ASAPRC | 
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| [274] | 60 | * HOME/.asaprc | 
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| [706] | 61 |  | 
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| [226] | 62 | """ | 
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|  | 63 |  | 
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|  | 64 | fname = os.path.join( os.getcwd(), '.asaprc') | 
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|  | 65 | if os.path.exists(fname): return fname | 
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|  | 66 |  | 
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|  | 67 | if os.environ.has_key('ASAPRC'): | 
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|  | 68 | path =  os.environ['ASAPRC'] | 
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|  | 69 | if os.path.exists(path): | 
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|  | 70 | fname = os.path.join(path, '.asaprc') | 
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|  | 71 | if os.path.exists(fname): | 
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|  | 72 | return fname | 
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|  | 73 |  | 
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|  | 74 | if os.environ.has_key('HOME'): | 
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|  | 75 | home =  os.environ['HOME'] | 
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|  | 76 | fname = os.path.join(home, '.asaprc') | 
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|  | 77 | if os.path.exists(fname): | 
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|  | 78 | return fname | 
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|  | 79 | return None | 
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|  | 80 |  | 
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| [706] | 81 |  | 
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| [226] | 82 | defaultParams = { | 
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|  | 83 | # general | 
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| [513] | 84 | 'verbose'             : [True, _validate_bool], | 
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|  | 85 | 'useplotter'          : [True, _validate_bool], | 
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| [542] | 86 | 'insitu'              : [True, _validate_bool], | 
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| [706] | 87 |  | 
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| [226] | 88 | # plotting | 
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| [706] | 89 | 'plotter.gui'         : [True, _validate_bool], | 
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| [226] | 90 | 'plotter.stacking'    : ['p', str], | 
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|  | 91 | 'plotter.panelling'   : ['s', str], | 
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| [700] | 92 | 'plotter.colours'     : ['', str], | 
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|  | 93 | 'plotter.linestyles'  : ['', str], | 
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| [710] | 94 | 'plotter.decimate'    : [False, _validate_bool], | 
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|  | 95 | 'plotter.ganged'      : [True, _validate_bool], | 
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| [1022] | 96 | 'plotter.histogram'  : [False, _validate_bool], | 
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| [1097] | 97 | 'plotter.papertype'  : ['A4', str], | 
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| [710] | 98 |  | 
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| [226] | 99 | # scantable | 
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|  | 100 | 'scantable.save'      : ['ASAP', str], | 
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| [513] | 101 | 'scantable.autoaverage'      : [True, _validate_bool], | 
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| [226] | 102 | 'scantable.freqframe' : ['LSRK', str],  #default frequency frame | 
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| [1076] | 103 | 'scantable.verbosesummary'   : [False, _validate_bool], | 
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|  | 104 | 'scantable.storage'   : ['memory', str] | 
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| [226] | 105 | # fitter | 
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|  | 106 | } | 
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|  | 107 |  | 
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| [255] | 108 | def list_rcparameters(): | 
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| [706] | 109 |  | 
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| [255] | 110 | print """ | 
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| [737] | 111 | # general | 
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|  | 112 | # print verbose output | 
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|  | 113 | verbose                    : True | 
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| [255] | 114 |  | 
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| [737] | 115 | # preload a default plotter | 
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|  | 116 | useplotter                 : True | 
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| [255] | 117 |  | 
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| [737] | 118 | # apply operations on the input scantable or return new one | 
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|  | 119 | insitu                     : True | 
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| [706] | 120 |  | 
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| [737] | 121 | # plotting | 
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| [710] | 122 |  | 
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| [737] | 123 | # do we want a GUI or plot to a file | 
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|  | 124 | plotter.gui                : True | 
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| [710] | 125 |  | 
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| [737] | 126 | # default mode for colour stacking | 
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|  | 127 | plotter.stacking           : Pol | 
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| [255] | 128 |  | 
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| [737] | 129 | # default mode for panelling | 
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|  | 130 | plotter.panelling          : scan | 
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| [255] | 131 |  | 
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| [737] | 132 | # push panels together, to share axislabels | 
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|  | 133 | plotter.ganged             : True | 
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| [710] | 134 |  | 
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| [737] | 135 | # decimate the number of points plotted bya afactor of | 
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|  | 136 | # nchan/1024 | 
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|  | 137 | plotter.decimate           : False | 
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| [733] | 138 |  | 
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| [737] | 139 | # default colours/linestyles | 
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|  | 140 | plotter.colours            : | 
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|  | 141 | plotter.linestyles         : | 
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| [700] | 142 |  | 
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| [1022] | 143 | # enable/disable histogram plotting | 
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|  | 144 | plotter.histogram          : False | 
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|  | 145 |  | 
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| [1097] | 146 | # ps paper type | 
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|  | 147 | plotter.papertype          : A4 | 
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|  | 148 |  | 
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| [737] | 149 | # scantable | 
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| [1076] | 150 |  | 
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| [1259] | 151 | # default storage of scantable ('memory'/'disk') | 
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| [1076] | 152 | scantable.storage          : memory | 
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| [737] | 153 | # default ouput format when saving | 
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|  | 154 | scantable.save             : ASAP | 
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|  | 155 | # auto averaging on read | 
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|  | 156 | scantable.autoaverage      : True | 
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| [255] | 157 |  | 
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| [737] | 158 | # default frequency frame to set when function | 
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| [1097] | 159 | # scantable.set_freqframe is called | 
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| [737] | 160 | scantable.freqframe        : LSRK | 
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| [255] | 161 |  | 
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| [737] | 162 | # Control the level of information printed by summary | 
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|  | 163 | scantable.verbosesummary   : False | 
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| [706] | 164 |  | 
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| [737] | 165 | # Fitter | 
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|  | 166 | """ | 
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| [706] | 167 |  | 
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| [226] | 168 | def rc_params(): | 
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|  | 169 | 'Return the default params updated from the values in the rc file' | 
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| [706] | 170 |  | 
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| [513] | 171 | fname = _asap_fname() | 
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| [706] | 172 |  | 
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| [226] | 173 | if fname is None or not os.path.exists(fname): | 
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|  | 174 | message = 'could not find rc file; returning defaults' | 
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|  | 175 | ret =  dict([ (key, tup[0]) for key, tup in defaultParams.items()]) | 
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|  | 176 | #print message | 
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|  | 177 | return ret | 
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| [706] | 178 |  | 
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| [226] | 179 | cnt = 0 | 
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|  | 180 | for line in file(fname): | 
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|  | 181 | cnt +=1 | 
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|  | 182 | line = line.strip() | 
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|  | 183 | if not len(line): continue | 
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|  | 184 | if line.startswith('#'): continue | 
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|  | 185 | tup = line.split(':',1) | 
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|  | 186 | if len(tup) !=2: | 
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|  | 187 | print ('Illegal line #%d\n\t%s\n\tin file "%s"' % (cnt, line, fname)) | 
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|  | 188 | continue | 
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| [706] | 189 |  | 
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| [226] | 190 | key, val = tup | 
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|  | 191 | key = key.strip() | 
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|  | 192 | if not defaultParams.has_key(key): | 
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|  | 193 | print ('Bad key "%s" on line %d in %s' % (key, cnt, fname)) | 
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|  | 194 | continue | 
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| [706] | 195 |  | 
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| [226] | 196 | default, converter =  defaultParams[key] | 
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|  | 197 |  | 
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|  | 198 | ind = val.find('#') | 
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|  | 199 | if ind>=0: val = val[:ind]   # ignore trailing comments | 
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|  | 200 | val = val.strip() | 
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|  | 201 | try: cval = converter(val)   # try to convert to proper type or raise | 
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| [1080] | 202 | except ValueError, msg: | 
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| [226] | 203 | print ('Bad val "%s" on line #%d\n\t"%s"\n\tin file "%s"\n\t%s' % (val, cnt, line, fname, msg)) | 
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|  | 204 | continue | 
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|  | 205 | else: | 
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|  | 206 | # Alles Klar, update dict | 
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|  | 207 | defaultParams[key][0] = cval | 
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|  | 208 |  | 
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|  | 209 | # strip the conveter funcs and return | 
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|  | 210 | ret =  dict([ (key, tup[0]) for key, tup in defaultParams.items()]) | 
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| [466] | 211 | print ('loaded rc file %s'%fname) | 
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| [226] | 212 |  | 
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|  | 213 | return ret | 
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|  | 214 |  | 
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|  | 215 |  | 
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|  | 216 | # this is the instance used by the asap classes | 
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| [706] | 217 | rcParams = rc_params() | 
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| [226] | 218 |  | 
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|  | 219 | rcParamsDefault = dict(rcParams.items()) # a copy | 
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|  | 220 |  | 
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|  | 221 | def rc(group, **kwargs): | 
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|  | 222 | """ | 
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|  | 223 | Set the current rc params.  Group is the grouping for the rc, eg | 
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| [379] | 224 | for scantable.save the group is 'scantable', for plotter.stacking, the | 
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|  | 225 | group is 'plotter', and so on.  kwargs is a list of attribute | 
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| [226] | 226 | name/value pairs, eg | 
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|  | 227 |  | 
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| [379] | 228 | rc('scantable', save='SDFITS') | 
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| [226] | 229 |  | 
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|  | 230 | sets the current rc params and is equivalent to | 
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| [706] | 231 |  | 
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| [379] | 232 | rcParams['scantable.save'] = 'SDFITS' | 
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| [226] | 233 |  | 
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|  | 234 | Use rcdefaults to restore the default rc params after changes. | 
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|  | 235 | """ | 
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|  | 236 |  | 
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| [379] | 237 | aliases = {} | 
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| [706] | 238 |  | 
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| [226] | 239 | for k,v in kwargs.items(): | 
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|  | 240 | name = aliases.get(k) or k | 
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|  | 241 | key = '%s.%s' % (group, name) | 
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|  | 242 | if not rcParams.has_key(key): | 
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|  | 243 | raise KeyError('Unrecognized key "%s" for group "%s" and name "%s"' % (key, group, name)) | 
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| [706] | 244 |  | 
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| [226] | 245 | rcParams[key] = v | 
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|  | 246 |  | 
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|  | 247 |  | 
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|  | 248 | def rcdefaults(): | 
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|  | 249 | """ | 
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|  | 250 | Restore the default rc params - the ones that were created at | 
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|  | 251 | asap load time | 
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|  | 252 | """ | 
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|  | 253 | rcParams.update(rcParamsDefault) | 
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|  | 254 |  | 
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| [1283] | 255 | def _n_bools(n, val): | 
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|  | 256 | return [ val for i in xrange(n) ] | 
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| [513] | 257 |  | 
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|  | 258 | def _is_sequence_or_number(param, ptype=int): | 
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|  | 259 | if isinstance(param,tuple) or isinstance(param,list): | 
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| [928] | 260 | if len(param) == 0: return True # empty list | 
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| [513] | 261 | out = True | 
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|  | 262 | for p in param: | 
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|  | 263 | out &= isinstance(p,ptype) | 
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|  | 264 | return out | 
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|  | 265 | elif isinstance(param, ptype): | 
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|  | 266 | return True | 
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|  | 267 | return False | 
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|  | 268 |  | 
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| [928] | 269 | def _to_list(param, ptype=int): | 
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|  | 270 | if isinstance(param, ptype): | 
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|  | 271 | if ptype is str: return param.split() | 
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|  | 272 | else: return [param] | 
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|  | 273 | if _is_sequence_or_number(param, ptype): | 
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|  | 274 | return param | 
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|  | 275 | return None | 
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| [715] | 276 |  | 
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| [944] | 277 | def unique(x): | 
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| [992] | 278 | """ | 
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|  | 279 | Return the unique values in a list | 
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|  | 280 | Parameters: | 
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|  | 281 | x:      the list to reduce | 
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|  | 282 | Examples: | 
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|  | 283 | x = [1,2,3,3,4] | 
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|  | 284 | print unique(x) | 
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|  | 285 | [1,2,3,4] | 
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|  | 286 | """ | 
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| [944] | 287 | return dict([ (val, 1) for val in x]).keys() | 
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|  | 288 |  | 
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| [992] | 289 | def list_files(path=".",suffix="rpf"): | 
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|  | 290 | """ | 
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|  | 291 | Return a list files readable by asap, such as rpf, sdfits, mbf, asap | 
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|  | 292 | Parameters: | 
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|  | 293 | path:     The directory to list (default '.') | 
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|  | 294 | suffix:   The file extension (default rpf) | 
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|  | 295 | Example: | 
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|  | 296 | files = list_files("data/","sdfits") | 
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|  | 297 | print files | 
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|  | 298 | ['data/2001-09-01_0332_P363.sdfits', | 
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|  | 299 | 'data/2003-04-04_131152_t0002.sdfits', | 
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|  | 300 | 'data/Sgr_86p262_best_SPC.sdfits'] | 
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|  | 301 | """ | 
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|  | 302 | if not os.path.isdir(path): | 
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|  | 303 | return None | 
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| [1283] | 304 | valid = "rpf rpf.1 rpf.2 sdf sdfits mbf asap".split() | 
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| [992] | 305 | if not suffix in valid: | 
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|  | 306 | return None | 
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|  | 307 | files = [os.path.expanduser(os.path.expandvars(path+"/"+f)) for f in os.listdir(path)] | 
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|  | 308 | return filter(lambda x: x.endswith(suffix),files) | 
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|  | 309 |  | 
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| [715] | 310 | # workaround for ipython, which redirects this if banner=0 in ipythonrc | 
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|  | 311 | sys.stdout = sys.__stdout__ | 
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|  | 312 | sys.stderr = sys.__stderr__ | 
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|  | 313 |  | 
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|  | 314 | # Logging | 
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|  | 315 | from asap._asap import Log as _asaplog | 
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|  | 316 | global asaplog | 
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| [710] | 317 | asaplog=_asaplog() | 
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| [715] | 318 | if rcParams['verbose']: | 
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|  | 319 | asaplog.enable() | 
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|  | 320 | else: | 
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|  | 321 | asaplog.disable() | 
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|  | 322 |  | 
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|  | 323 | def print_log(): | 
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|  | 324 | log = asaplog.pop() | 
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|  | 325 | if len(log) and rcParams['verbose']: print log | 
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|  | 326 | return | 
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|  | 327 |  | 
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| [1283] | 328 | def mask_and(a, b): | 
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|  | 329 | assert(len(a)==len(b)) | 
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|  | 330 | return [ a[i] & b[i] for i in xrange(len(a)) ] | 
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| [1134] | 331 |  | 
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| [1283] | 332 | def mask_or(a, b): | 
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|  | 333 | assert(len(a)==len(b)) | 
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|  | 334 | return [ a[i] | b[i] for i in xrange(len(a)) ] | 
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|  | 335 |  | 
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|  | 336 | def mask_not(a): | 
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|  | 337 | return [ not i for i in a ] | 
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|  | 338 |  | 
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| [1117] | 339 | from asapfitter import fitter | 
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| [895] | 340 | from asapreader import reader | 
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| [944] | 341 | from selector import selector | 
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| [710] | 342 |  | 
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| [100] | 343 | from asapmath import * | 
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| [1080] | 344 | from scantable import scantable | 
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| [1097] | 345 | from asaplinefind import linefinder | 
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| [1134] | 346 | from linecatalog import linecatalog | 
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| [285] | 347 |  | 
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| [928] | 348 | if rcParams['useplotter']: | 
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| [1283] | 349 | try: | 
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|  | 350 | from  asapplotter import asapplotter | 
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|  | 351 | gui = os.environ.has_key('DISPLAY') and rcParams['plotter.gui'] | 
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|  | 352 | if gui: | 
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|  | 353 | import pylab as xyplotter | 
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|  | 354 | plotter = asapplotter(gui) | 
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|  | 355 | del gui | 
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|  | 356 | except ImportError: | 
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|  | 357 | print "Matplotlib not installed. No plotting available" | 
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| [285] | 358 |  | 
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| [574] | 359 | __date__ = '$Date: 2006-11-09 03:06:26 +0000 (Thu, 09 Nov 2006) $'.split()[1] | 
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| [1301] | 360 | __version__  = '2.1.1' | 
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| [100] | 361 |  | 
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| [1193] | 362 | def is_ipython(): | 
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| [1259] | 363 | return '__IP' in dir(sys.modules["__main__"]) | 
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| [1193] | 364 | if is_ipython(): | 
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| [1014] | 365 | def version(): print  "ASAP %s(%s)"% (__version__, __date__) | 
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| [706] | 366 | def list_scans(t = scantable): | 
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| [1286] | 367 | import types | 
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| [706] | 368 | globs = sys.modules['__main__'].__dict__.iteritems() | 
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|  | 369 | print "The user created scantables are:" | 
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|  | 370 | sts = map(lambda x: x[0], filter(lambda x: isinstance(x[1], t), globs)) | 
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|  | 371 | print filter(lambda x: not x.startswith('_'), sts) | 
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|  | 372 | return | 
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| [100] | 373 |  | 
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| [715] | 374 | def commands(): | 
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|  | 375 | x = """ | 
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| [113] | 376 | [The scan container] | 
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|  | 377 | scantable           - a container for integrations/scans | 
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| [182] | 378 | (can open asap/rpfits/sdfits and ms files) | 
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| [113] | 379 | copy            - returns a copy of a scan | 
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|  | 380 | get_scan        - gets a specific scan out of a scantable | 
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| [984] | 381 | (by name or number) | 
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| [1093] | 382 | drop_scan       - drops a specific scan out of a scantable | 
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|  | 383 | (by number) | 
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| [984] | 384 | set_selection   - set a new subselection of the data | 
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|  | 385 | get_selection   - get the current selection object | 
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| [113] | 386 | summary         - print info about the scantable contents | 
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| [182] | 387 | stats           - get specified statistic of the spectra in | 
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|  | 388 | the scantable | 
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|  | 389 | stddev          - get the standard deviation of the spectra | 
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|  | 390 | in the scantable | 
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| [113] | 391 | get_tsys        - get the TSys | 
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|  | 392 | get_time        - get the timestamps of the integrations | 
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| [733] | 393 | get_sourcename  - get the source names of the scans | 
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| [794] | 394 | get_azimuth     - get the azimuth of the scans | 
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|  | 395 | get_elevation   - get the elevation of the scans | 
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|  | 396 | get_parangle    - get the parallactic angle of the scans | 
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| [876] | 397 | get_unit        - get the current unit | 
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| [513] | 398 | set_unit        - set the abcissa unit to be used from this | 
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|  | 399 | point on | 
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| [255] | 400 | get_abcissa     - get the abcissa values and name for a given | 
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|  | 401 | row (time) | 
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| [1259] | 402 | get_column_names - get the names of the columns in the scantable | 
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|  | 403 | for use with selector.set_query | 
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| [113] | 404 | set_freqframe   - set the frame info for the Spectral Axis | 
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|  | 405 | (e.g. 'LSRK') | 
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| [276] | 406 | set_doppler     - set the doppler to be used from this point on | 
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| [984] | 407 | set_dirframe    - set the frame for the direction on the sky | 
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| [240] | 408 | set_instrument  - set the instrument name | 
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| [1190] | 409 | set_feedtype    - set the feed type | 
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| [255] | 410 | get_fluxunit    - get the brightness flux unit | 
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| [240] | 411 | set_fluxunit    - set the brightness flux unit | 
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| [188] | 412 | create_mask     - return an mask in the current unit | 
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|  | 413 | for the given region. The specified regions | 
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|  | 414 | are NOT masked | 
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| [255] | 415 | get_restfreqs   - get the current list of rest frequencies | 
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|  | 416 | set_restfreqs   - set a list of rest frequencies | 
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| [1012] | 417 | flag            - flag selected channels in the data | 
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| [1192] | 418 | lag_flag        - flag specified frequency in the data | 
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| [1151] | 419 | save            - save the scantable to disk as either 'ASAP', | 
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|  | 420 | 'SDFITS' or 'ASCII' | 
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| [486] | 421 | nbeam,nif,nchan,npol - the number of beams/IFs/Pols/Chans | 
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| [733] | 422 | nscan           - the number of scans in the scantable | 
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| [984] | 423 | nrow            - te number of spectra in the scantable | 
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| [486] | 424 | history         - print the history of the scantable | 
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| [530] | 425 | get_fit         - get a fit which has been stored witnh the data | 
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| [706] | 426 | average_time    - return the (weighted) time average of a scan | 
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| [513] | 427 | or a list of scans | 
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|  | 428 | average_pol     - average the polarisations together. | 
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| [1144] | 429 | average_beam    - average the beams together. | 
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| [992] | 430 | convert_pol     - convert to a different polarisation type | 
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| [690] | 431 | auto_quotient   - return the on/off quotient with | 
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| [1069] | 432 | automatic detection of the on/off scans (closest | 
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|  | 433 | in time off is selected) | 
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| [1144] | 434 | mx_quotient     - Form a quotient using MX data (off beams) | 
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| [1014] | 435 | scale, *, /     - return a scan scaled by a given factor | 
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|  | 436 | add, +, -       - return a scan with given value added | 
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| [513] | 437 | bin             - return a scan with binned channels | 
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|  | 438 | resample        - return a scan with resampled channels | 
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|  | 439 | smooth          - return the spectrally smoothed scan | 
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|  | 440 | poly_baseline   - fit a polynomial baseline to all Beams/IFs/Pols | 
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| [706] | 441 | auto_poly_baseline - automatically fit a polynomial baseline | 
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| [780] | 442 | recalc_azel     - recalculate azimuth and elevation based on | 
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|  | 443 | the pointing | 
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| [513] | 444 | gain_el         - apply gain-elevation correction | 
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|  | 445 | opacity         - apply opacity correction | 
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|  | 446 | convert_flux    - convert to and from Jy and Kelvin brightness | 
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| [255] | 447 | units | 
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| [513] | 448 | freq_align      - align spectra in frequency frame | 
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| [1014] | 449 | invert_phase    - Invert the phase of the cross-correlation | 
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|  | 450 | swap_linears    - Swap XX and YY | 
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| [513] | 451 | rotate_xyphase  - rotate XY phase of cross correlation | 
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|  | 452 | rotate_linpolphase - rotate the phase of the complex | 
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|  | 453 | polarization O=Q+iU correlation | 
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| [733] | 454 | freq_switch     - perform frequency switching on the data | 
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|  | 455 | stats           - Determine the specified statistic, e.g. 'min' | 
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|  | 456 | 'max', 'rms' etc. | 
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|  | 457 | stddev          - Determine the standard deviation of the current | 
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|  | 458 | beam/if/pol | 
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| [1014] | 459 | [Selection] | 
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|  | 460 | selector              - a selection object to set a subset of a scantable | 
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|  | 461 | set_scans          - set (a list of) scans by index | 
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|  | 462 | set_cycles         - set (a list of) cycles by index | 
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|  | 463 | set_beams          - set (a list of) beamss by index | 
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|  | 464 | set_ifs            - set (a list of) ifs by index | 
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|  | 465 | set_polarisations  - set (a list of) polarisations by name | 
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|  | 466 | or by index | 
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|  | 467 | set_names          - set a selection by name (wildcards allowed) | 
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|  | 468 | set_tsys           - set a selection by tsys thresholds | 
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| [1259] | 469 | set_query          - set a selection by SQL-like query, e.g. BEAMNO==1 | 
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| [1014] | 470 | reset              - unset all selections | 
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|  | 471 | +                  - merge to selections | 
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| [733] | 472 |  | 
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| [513] | 473 | [Math] Mainly functions which operate on more than one scantable | 
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| [100] | 474 |  | 
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| [706] | 475 | average_time    - return the (weighted) time average | 
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| [513] | 476 | of a list of scans | 
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|  | 477 | quotient        - return the on/off quotient | 
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|  | 478 | simple_math     - simple mathematical operations on two scantables, | 
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|  | 479 | 'add', 'sub', 'mul', 'div' | 
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| [1069] | 480 | quotient        - build quotient of the given on and off scans | 
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|  | 481 | (matched pairs and 1 off/n on are valid) | 
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| [1117] | 482 | merge           - merge a list of scantables | 
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| [1069] | 483 |  | 
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| [1151] | 484 | [Line Catalog] | 
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|  | 485 | linecatalog              - a linecatalog wrapper, taking an ASCII or | 
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|  | 486 | internal format table | 
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|  | 487 | summary              - print a summary of the current selection | 
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|  | 488 | set_name             - select a subset by name pattern, e.g. '*OH*' | 
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|  | 489 | set_strength_limits  - select a subset by line strength limits | 
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|  | 490 | set_frequency_limits - select a subset by frequency limits | 
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|  | 491 | reset                - unset all selections | 
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|  | 492 | save                 - save the current subset to a table (internal | 
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|  | 493 | format) | 
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|  | 494 | get_row              - get the name and frequency from a specific | 
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|  | 495 | row in the table | 
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| [513] | 496 | [Fitting] | 
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| [113] | 497 | fitter | 
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|  | 498 | auto_fit        - return a scan where the function is | 
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|  | 499 | applied to all Beams/IFs/Pols. | 
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|  | 500 | commit          - return a new scan where the fits have been | 
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|  | 501 | commited. | 
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|  | 502 | fit             - execute the actual fitting process | 
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| [984] | 503 | store_fit       - store the fit parameters in the data (scantable) | 
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| [113] | 504 | get_chi2        - get the Chi^2 | 
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|  | 505 | set_scan        - set the scantable to be fit | 
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|  | 506 | set_function    - set the fitting function | 
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|  | 507 | set_parameters  - set the parameters for the function(s), and | 
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|  | 508 | set if they should be held fixed during fitting | 
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| [513] | 509 | set_gauss_parameters - same as above but specialised for individual | 
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|  | 510 | gaussian components | 
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| [113] | 511 | get_parameters  - get the fitted parameters | 
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| [513] | 512 | plot            - plot the resulting fit and/or components and | 
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|  | 513 | residual | 
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| [210] | 514 | [Plotter] | 
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|  | 515 | asapplotter         - a plotter for asap, default plotter is | 
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|  | 516 | called 'plotter' | 
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| [984] | 517 | plot            - plot a scantable | 
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| [1151] | 518 | plot_lines      - plot a linecatalog overlay | 
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| [378] | 519 | save            - save the plot to a file ('png' ,'ps' or 'eps') | 
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| [210] | 520 | set_mode        - set the state of the plotter, i.e. | 
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|  | 521 | what is to be plotted 'colour stacked' | 
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|  | 522 | and what 'panelled' | 
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| [984] | 523 | set_selection   - only plot a selected part of the data | 
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| [733] | 524 | set_range       - set a 'zoom' window [xmin,xmax,ymin,ymax] | 
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| [255] | 525 | set_legend      - specify user labels for the legend indeces | 
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|  | 526 | set_title       - specify user labels for the panel indeces | 
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| [733] | 527 | set_abcissa     - specify a user label for the abcissa | 
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| [255] | 528 | set_ordinate    - specify a user label for the ordinate | 
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| [378] | 529 | set_layout      - specify the multi-panel layout (rows,cols) | 
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| [733] | 530 | set_colors      - specify a set of colours to use | 
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|  | 531 | set_linestyles  - specify a set of linestyles to use if only | 
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|  | 532 | using one color | 
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| [1151] | 533 | set_font        - set general font properties, e.g. 'family' | 
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| [1054] | 534 | set_histogram   - plot in historam style | 
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| [733] | 535 | set_mask        - set a plotting mask for a specific polarization | 
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| [1171] | 536 | text            - draw text annotations either in data or relative | 
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|  | 537 | coordinates | 
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|  | 538 | arrow           - draw arrow annotations either in data or relative | 
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|  | 539 | coordinates | 
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|  | 540 | axhline,axvline - draw horizontal/vertical lines | 
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|  | 541 | axhspan,axvspan - draw horizontal/vertical regions | 
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| [1175] | 542 |  | 
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|  | 543 | xyplotter           - matplotlib/pylab plotting functions | 
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|  | 544 |  | 
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| [182] | 545 | [Reading files] | 
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|  | 546 | reader              - access rpfits/sdfits files | 
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| [984] | 547 | open            - attach reader to a file | 
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|  | 548 | close           - detach reader from file | 
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| [182] | 549 | read            - read in integrations | 
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|  | 550 | summary         - list info about all integrations | 
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|  | 551 |  | 
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| [113] | 552 | [General] | 
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|  | 553 | commands            - this command | 
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|  | 554 | print               - print details about a variable | 
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|  | 555 | list_scans          - list all scantables created bt the user | 
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| [992] | 556 | list_files          - list all files readable by asap (default rpf) | 
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| [113] | 557 | del                 - delete the given variable from memory | 
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|  | 558 | range               - create a list of values, e.g. | 
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|  | 559 | range(3) = [0,1,2], range(2,5) = [2,3,4] | 
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|  | 560 | help                - print help for one of the listed functions | 
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|  | 561 | execfile            - execute an asap script, e.g. execfile('myscript') | 
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| [255] | 562 | list_rcparameters   - print out a list of possible values to be | 
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| [274] | 563 | put into $HOME/.asaprc | 
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| [1171] | 564 | rc                  - set rc parameters from within asap | 
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| [466] | 565 | mask_and,mask_or, | 
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|  | 566 | mask_not            - boolean operations on masks created with | 
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|  | 567 | scantable.create_mask | 
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| [706] | 568 |  | 
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| [210] | 569 | Note: | 
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|  | 570 | How to use this with help: | 
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|  | 571 | # function 'summary' | 
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|  | 572 | [xxx] is just a category | 
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|  | 573 | Every 'sub-level' in this list should be replaces by a '.' Period when | 
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| [706] | 574 | using help | 
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| [210] | 575 | Example: | 
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|  | 576 | ASAP> help scantable # to get info on ths scantable | 
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|  | 577 | ASAP> help scantable.summary # to get help on the scantable's | 
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|  | 578 | ASAP> help average_time | 
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|  | 579 |  | 
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| [715] | 580 | """ | 
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| [1151] | 581 | if rcParams['verbose']: | 
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|  | 582 | try: | 
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|  | 583 | from IPython.genutils import page as pager | 
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|  | 584 | except ImportError: | 
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|  | 585 | from pydoc import pager | 
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|  | 586 | pager(x) | 
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|  | 587 | else: | 
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|  | 588 | print x | 
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| [715] | 589 | return | 
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| [113] | 590 |  | 
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| [706] | 591 | def welcome(): | 
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|  | 592 | return """Welcome to ASAP v%s (%s) - the ATNF Spectral Analysis Package | 
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| [100] | 593 |  | 
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| [1035] | 594 | Please report any bugs via: | 
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|  | 595 | http://sourcecode.atnf.csiro.au/cgi-bin/trac_asap.cgi/newticket | 
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| [100] | 596 |  | 
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| [378] | 597 | [IMPORTANT: ASAP is 0-based] | 
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| [706] | 598 | Type commands() to get a list of all available ASAP commands.""" % (__version__, __date__) | 
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