| 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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| 5 | import os,sys,shutil, platform
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| 6 |
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| 7 | # Set up CASAPATH 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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| 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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| 24 | # use CASAPATH if defined and "data" dir present
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| 25 | if not os.environ.has_key("CASAPATH") or \
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| 26 | not os.path.exists(os.environ["CASAPATH"].split()[0]+"/data"):
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| 27 | os.environ["CASAPATH"] = "%s %s somwhere" % ( asapdata, plf)
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| 28 | # set up user space
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| 29 | userdir = os.environ["HOME"]+"/.asap"
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| 30 | if not os.path.exists(userdir):
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| 31 | print 'First time ASAP use. Setting up ~/.asap'
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| 32 | os.mkdir(userdir)
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| 33 | #shutil.copyfile(asapdata+"/data/ipythonrc-asap", userdir+"/ipythonrc-asap")
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| 34 | # commented out by TT on 2009.06.23 for casapy use
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| 35 | ##shutil.copyfile(asapdata+"/data/ipy_user_conf.py",
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| 36 | ## userdir+"/ipy_user_conf.py")
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| 37 | f = file(userdir+"/asapuserfuncs.py", "w")
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| 38 | f.close()
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| 39 | f = file(userdir+"/ipythonrc", "w")
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| 40 | f.close()
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| 41 | # commented out by TT on 2009.06.23 for casapy use
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| 42 | ##else:
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| 43 | # upgrade to support later ipython versions
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| 44 | ##if not os.path.exists(userdir+"/ipy_user_conf.py"):
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| 45 | ## shutil.copyfile(asapdata+"/data/ipy_user_conf.py",
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| 46 | ## userdir+"/ipy_user_conf.py")
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| 47 |
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| 48 | # remove from namespace
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| 49 | del asapdata, userdir, shutil, platform
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| 50 |
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| 51 | def _validate_bool(b):
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| 52 | 'Convert b to a boolean or raise'
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| 53 | bl = b.lower()
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| 54 | if bl in ('f', 'no', 'false', '0', 0): return False
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| 55 | elif bl in ('t', 'yes', 'true', '1', 1): return True
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| 56 | else:
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| 57 | raise ValueError('Could not convert "%s" to boolean' % b)
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| 58 |
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| 59 | def _validate_int(s):
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| 60 | 'convert s to int or raise'
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| 61 | try: return int(s)
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| 62 | except ValueError:
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| 63 | raise ValueError('Could not convert "%s" to int' % s)
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| 64 |
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| 65 | def _asap_fname():
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| 66 | """
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| 67 | Return the path to the rc file
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| 68 |
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| 69 | Search order:
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| 70 |
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| 71 | * current working dir
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| 72 | * environ var ASAPRC
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| 73 | * HOME/.asaprc
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| 74 |
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| 75 | """
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| 76 |
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| 77 | fname = os.path.join( os.getcwd(), '.asaprc')
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| 78 | if os.path.exists(fname): return fname
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| 79 |
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| 80 | if os.environ.has_key('ASAPRC'):
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| 81 | path = os.environ['ASAPRC']
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| 82 | if os.path.exists(path):
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| 83 | fname = os.path.join(path, '.asaprc')
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| 84 | if os.path.exists(fname):
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| 85 | return fname
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| 86 |
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| 87 | if os.environ.has_key('HOME'):
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| 88 | home = os.environ['HOME']
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| 89 | fname = os.path.join(home, '.asaprc')
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| 90 | if os.path.exists(fname):
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| 91 | return fname
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| 92 | return None
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| 93 |
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| 94 |
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| 95 | defaultParams = {
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| 96 | # general
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| 97 | 'verbose' : [True, _validate_bool],
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| 98 | 'useplotter' : [True, _validate_bool],
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| 99 | 'insitu' : [True, _validate_bool],
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| 100 |
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| 101 | # plotting
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| 102 | 'plotter.gui' : [True, _validate_bool],
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| 103 | 'plotter.stacking' : ['p', str],
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| 104 | 'plotter.panelling' : ['s', str],
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| 105 | 'plotter.colours' : ['', str],
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| 106 | 'plotter.linestyles' : ['', str],
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| 107 | 'plotter.decimate' : [False, _validate_bool],
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| 108 | 'plotter.ganged' : [True, _validate_bool],
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| 109 | 'plotter.histogram' : [False, _validate_bool],
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| 110 | 'plotter.papertype' : ['A4', str],
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| 111 | 'plotter.xaxisformatting' : ['asap', str],
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| 112 |
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| 113 | # scantable
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| 114 | 'scantable.save' : ['ASAP', str],
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| 115 | 'scantable.autoaverage' : [True, _validate_bool],
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| 116 | 'scantable.freqframe' : ['LSRK', str], #default frequency frame
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| 117 | 'scantable.verbosesummary' : [False, _validate_bool],
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| 118 | 'scantable.storage' : ['memory', str],
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| 119 | 'scantable.history' : [True, _validate_bool],
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| 120 | 'scantable.reference' : ['.*(e|w|_R)$', str]
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| 121 | # fitter
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| 122 | }
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| 123 |
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| 124 | def list_rcparameters():
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| 125 |
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| 126 | print """
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| 127 | # general
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| 128 | # print verbose output
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| 129 | verbose : True
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| 130 |
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| 131 | # preload a default plotter
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| 132 | useplotter : True
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| 133 |
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| 134 | # apply operations on the input scantable or return new one
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| 135 | insitu : True
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| 136 |
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| 137 | # plotting
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| 138 |
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| 139 | # do we want a GUI or plot to a file
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| 140 | plotter.gui : True
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| 141 |
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| 142 | # default mode for colour stacking
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| 143 | plotter.stacking : Pol
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| 144 |
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| 145 | # default mode for panelling
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| 146 | plotter.panelling : scan
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| 147 |
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| 148 | # push panels together, to share axislabels
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| 149 | plotter.ganged : True
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| 150 |
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| 151 | # decimate the number of points plotted by a factor of
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| 152 | # nchan/1024
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| 153 | plotter.decimate : False
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| 154 |
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| 155 | # default colours/linestyles
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| 156 | plotter.colours :
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| 157 | plotter.linestyles :
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| 158 |
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| 159 | # enable/disable histogram plotting
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| 160 | plotter.histogram : False
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| 161 |
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| 162 | # ps paper type
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| 163 | plotter.papertype : A4
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| 164 |
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| 165 | # The formatting style of the xaxis
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| 166 | plotter.xaxisformatting : 'asap' or 'mpl'
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| 167 |
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| 168 | # scantable
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| 169 |
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| 170 | # default storage of scantable ('memory'/'disk')
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| 171 | scantable.storage : memory
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| 172 |
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| 173 | # write history of each call to scantable
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| 174 | scantable.history : True
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| 175 |
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| 176 | # default ouput format when saving
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| 177 | scantable.save : ASAP
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| 178 |
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| 179 | # auto averaging on read
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| 180 | scantable.autoaverage : True
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| 181 |
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| 182 | # default frequency frame to set when function
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| 183 | # scantable.set_freqframe is called
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| 184 | scantable.freqframe : LSRK
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| 185 |
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| 186 | # Control the level of information printed by summary
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| 187 | scantable.verbosesummary : False
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| 188 |
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| 189 | # Control the identification of reference (off) scans
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| 190 | # This is has to be a regular expression
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| 191 | scantable.reference : .*(e|w|_R)$
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| 192 | # Fitter
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| 193 | """
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| 194 |
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| 195 | def rc_params():
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| 196 | 'Return the default params updated from the values in the rc file'
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| 197 |
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| 198 | fname = _asap_fname()
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| 199 |
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| 200 | if fname is None or not os.path.exists(fname):
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| 201 | message = 'could not find rc file; returning defaults'
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| 202 | ret = dict([ (key, tup[0]) for key, tup in defaultParams.items()])
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| 203 | #print message
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| 204 | return ret
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| 205 |
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| 206 | cnt = 0
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| 207 | for line in file(fname):
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| 208 | cnt +=1
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| 209 | line = line.strip()
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| 210 | if not len(line): continue
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| 211 | if line.startswith('#'): continue
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| 212 | tup = line.split(':',1)
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| 213 | if len(tup) !=2:
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| 214 | #print ('Illegal line #%d\n\t%s\n\tin file "%s"' % (cnt, line, fname))
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| 215 | asaplog.push('Illegal line #%d\n\t%s\n\tin file "%s"' % (cnt, line, fname))
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| 216 | print_log('WARN')
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| 217 | continue
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| 218 |
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| 219 | key, val = tup
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| 220 | key = key.strip()
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| 221 | if not defaultParams.has_key(key):
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| 222 | #print ('Bad key "%s" on line %d in %s' % (key, cnt, fname))
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| 223 | asaplog.push('Bad key "%s" on line %d in %s' % (key, cnt, fname))
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| 224 | print_log('WARN')
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| 225 | continue
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| 226 |
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| 227 | default, converter = defaultParams[key]
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| 228 |
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| 229 | ind = val.find('#')
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| 230 | if ind>=0: val = val[:ind] # ignore trailing comments
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| 231 | val = val.strip()
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| 232 | try: cval = converter(val) # try to convert to proper type or raise
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| 233 | except ValueError, msg:
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| 234 | #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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| 235 | asaplog.push('Bad val "%s" on line #%d\n\t"%s"\n\tin file "%s"\n\t%s' % (val, cnt, line, fname, str(msg)))
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| 236 | print_log('WARN')
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| 237 | continue
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| 238 | else:
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| 239 | # Alles Klar, update dict
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| 240 | defaultParams[key][0] = cval
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| 241 |
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| 242 | # strip the conveter funcs and return
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| 243 | ret = dict([ (key, tup[0]) for key, tup in defaultParams.items()])
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| 244 | print ('loaded rc file %s'%fname)
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| 245 |
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| 246 | return ret
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| 247 |
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| 248 |
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| 249 | # this is the instance used by the asap classes
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| 250 | rcParams = rc_params()
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| 251 |
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| 252 | rcParamsDefault = dict(rcParams.items()) # a copy
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| 253 |
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| 254 | def rc(group, **kwargs):
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| 255 | """
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| 256 | Set the current rc params. Group is the grouping for the rc, eg
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| 257 | for scantable.save the group is 'scantable', for plotter.stacking, the
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| 258 | group is 'plotter', and so on. kwargs is a list of attribute
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| 259 | name/value pairs, eg
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| 260 |
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| 261 | rc('scantable', save='SDFITS')
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| 262 |
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| 263 | sets the current rc params and is equivalent to
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| 264 |
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| 265 | rcParams['scantable.save'] = 'SDFITS'
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| 266 |
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| 267 | Use rcdefaults to restore the default rc params after changes.
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| 268 | """
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| 269 |
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| 270 | aliases = {}
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| 271 |
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| 272 | for k,v in kwargs.items():
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| 273 | name = aliases.get(k) or k
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| 274 | if len(group):
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| 275 | key = '%s.%s' % (group, name)
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| 276 | else:
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| 277 | key = name
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| 278 | if not rcParams.has_key(key):
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| 279 | raise KeyError('Unrecognized key "%s" for group "%s" and name "%s"' % (key, group, name))
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| 280 |
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| 281 | rcParams[key] = v
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| 282 |
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| 283 |
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| 284 | def rcdefaults():
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| 285 | """
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| 286 | Restore the default rc params - the ones that were created at
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| 287 | asap load time
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| 288 | """
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| 289 | rcParams.update(rcParamsDefault)
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| 290 |
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| 291 | def _n_bools(n, val):
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| 292 | return [ val for i in xrange(n) ]
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| 293 |
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| 294 | def _is_sequence_or_number(param, ptype=int):
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| 295 | if isinstance(param,tuple) or isinstance(param,list):
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| 296 | if len(param) == 0: return True # empty list
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| 297 | out = True
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| 298 | for p in param:
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| 299 | out &= isinstance(p,ptype)
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| 300 | return out
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| 301 | elif isinstance(param, ptype):
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| 302 | return True
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| 303 | return False
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| 304 |
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| 305 | def _to_list(param, ptype=int):
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| 306 | if isinstance(param, ptype):
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| 307 | if ptype is str: return param.split()
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| 308 | else: return [param]
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| 309 | if _is_sequence_or_number(param, ptype):
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| 310 | return param
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| 311 | return None
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| 312 |
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| 313 | def unique(x):
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| 314 | """
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| 315 | Return the unique values in a list
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| 316 | Parameters:
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| 317 | x: the list to reduce
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| 318 | Examples:
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| 319 | x = [1,2,3,3,4]
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| 320 | print unique(x)
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| 321 | [1,2,3,4]
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| 322 | """
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| 323 | return dict([ (val, 1) for val in x]).keys()
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| 324 |
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| 325 | def list_files(path=".",suffix="rpf"):
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| 326 | """
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| 327 | Return a list files readable by asap, such as rpf, sdfits, mbf, asap
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| 328 | Parameters:
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| 329 | path: The directory to list (default '.')
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| 330 | suffix: The file extension (default rpf)
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| 331 | Example:
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| 332 | files = list_files("data/","sdfits")
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| 333 | print files
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| 334 | ['data/2001-09-01_0332_P363.sdfits',
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| 335 | 'data/2003-04-04_131152_t0002.sdfits',
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| 336 | 'data/Sgr_86p262_best_SPC.sdfits']
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| 337 | """
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| 338 | if not os.path.isdir(path):
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| 339 | return None
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| 340 | valid = "rpf rpf.1 rpf.2 sdf sdfits mbf asap".split()
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| 341 | if not suffix in valid:
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| 342 | return None
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| 343 | files = [os.path.expanduser(os.path.expandvars(path+"/"+f)) for f in os.listdir(path)]
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| 344 | return filter(lambda x: x.endswith(suffix),files)
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| 345 |
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| 346 | # workaround for ipython, which redirects this if banner=0 in ipythonrc
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| 347 | sys.stdout = sys.__stdout__
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| 348 | sys.stderr = sys.__stderr__
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| 349 |
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| 350 | # Logging
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| 351 | from asap._asap import Log as _asaplog
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| 352 | global asaplog
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| 353 | asaplog=_asaplog()
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| 354 | if rcParams['verbose']:
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| 355 | asaplog.enable()
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| 356 | else:
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| 357 | asaplog.disable()
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| 358 |
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| 359 | def print_log(level='INFO'):
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| 360 | from taskinit import casalog
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| 361 | log = asaplog.pop()
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| 362 | #if len(log) and rcParams['verbose']: print log
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| 363 | if len(log) and rcParams['verbose']: casalog.post( log, priority=level )
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| 364 | return
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| 365 |
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| 366 | def mask_and(a, b):
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| 367 | assert(len(a)==len(b))
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| 368 | return [ a[i] & b[i] for i in xrange(len(a)) ]
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| 369 |
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| 370 | def mask_or(a, b):
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| 371 | assert(len(a)==len(b))
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| 372 | return [ a[i] | b[i] for i in xrange(len(a)) ]
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| 373 |
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| 374 | def mask_not(a):
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| 375 | return [ not i for i in a ]
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| 376 |
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| 377 | from asapfitter import fitter
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| 378 | from asapreader import reader
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| 379 | from selector import selector
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| 380 |
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| 381 | from asapmath import *
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| 382 | from scantable import scantable
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| 383 | from asaplinefind import linefinder
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| 384 | from linecatalog import linecatalog
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| 385 | from interactivemask import interactivemask
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| 386 |
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| 387 | if rcParams['useplotter']:
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| 388 | try:
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| 389 | from asapplotter import asapplotter
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| 390 | gui = os.environ.has_key('DISPLAY') and rcParams['plotter.gui']
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| 391 | if gui:
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| 392 | import matplotlib
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| 393 | if not matplotlib.sys.modules['matplotlib.backends']: matplotlib.use("TkAgg")
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| 394 | import pylab
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| 395 | xyplotter = pylab
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| 396 | plotter = asapplotter(gui)
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| 397 | del gui
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| 398 | except ImportError:
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| 399 | #print "Matplotlib not installed. No plotting available"
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| 400 | asaplog.post( "Matplotlib not installed. No plotting available")
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| 401 | print_log('WARN')
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| 402 |
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| 403 | __date__ = '$Date: 2010-04-28 04:33:35 +0000 (Wed, 28 Apr 2010) $'.split()[1]
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| 404 | __version__ = '2.3.1 alma'
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| 405 | # nrao casapy specific, get revision number
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| 406 | #__revision__ = ' unknown '
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| 407 | casapath=os.environ["CASAPATH"].split()
|
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| 408 | #svninfo.txt path
|
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| 409 | if os.path.isdir(casapath[0]+'/'+casapath[1]+'/python/2.5/asap'):
|
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| 410 | # for casa developer environment (linux or darwin)
|
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| 411 | revinfo=casapath[0]+'/'+casapath[1]+'/python/2.5/asap/svninfo.txt'
|
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| 412 | else:
|
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| 413 | # for end-user environments
|
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| 414 | if casapath[1]=='darwin':
|
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| 415 | revinfo=casapath[0]+'/Resources/python/asap/svninfo.txt'
|
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| 416 | else:
|
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| 417 | revinfo=casapath[0]+'/lib/python2.5/asap/svninfo.txt'
|
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| 418 | if os.path.isfile(revinfo):
|
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| 419 | f = file(revinfo)
|
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| 420 | f.readline()
|
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| 421 | revsionno=f.readline()
|
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| 422 | f.close()
|
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| 423 | del f
|
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| 424 | __revision__ = revsionno.rstrip()
|
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| 425 | else:
|
|---|
| 426 | __revision__ = ' unknown '
|
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| 427 |
|
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| 428 | def is_ipython():
|
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| 429 | return '__IP' in dir(sys.modules["__main__"])
|
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| 430 | if is_ipython():
|
|---|
| 431 | def version(): print "ASAP %s(%s)"% (__version__, __date__)
|
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| 432 | def list_scans(t = scantable):
|
|---|
| 433 | import types
|
|---|
| 434 | globs = sys.modules['__main__'].__dict__.iteritems()
|
|---|
| 435 | print "The user created scantables are:"
|
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| 436 | sts = map(lambda x: x[0], filter(lambda x: isinstance(x[1], t), globs))
|
|---|
| 437 | print filter(lambda x: not x.startswith('_'), sts)
|
|---|
| 438 | return
|
|---|
| 439 |
|
|---|
| 440 | def commands():
|
|---|
| 441 | x = """
|
|---|
| 442 | [The scan container]
|
|---|
| 443 | scantable - a container for integrations/scans
|
|---|
| 444 | (can open asap/rpfits/sdfits and ms files)
|
|---|
| 445 | copy - returns a copy of a scan
|
|---|
| 446 | get_scan - gets a specific scan out of a scantable
|
|---|
| 447 | (by name or number)
|
|---|
| 448 | drop_scan - drops a specific scan out of a scantable
|
|---|
| 449 | (by number)
|
|---|
| 450 | set_selection - set a new subselection of the data
|
|---|
| 451 | get_selection - get the current selection object
|
|---|
| 452 | summary - print info about the scantable contents
|
|---|
| 453 | stats - get specified statistic of the spectra in
|
|---|
| 454 | the scantable
|
|---|
| 455 | stddev - get the standard deviation of the spectra
|
|---|
| 456 | in the scantable
|
|---|
| 457 | get_tsys - get the TSys
|
|---|
| 458 | get_time - get the timestamps of the integrations
|
|---|
| 459 | get_inttime - get the integration time
|
|---|
| 460 | get_sourcename - get the source names of the scans
|
|---|
| 461 | get_azimuth - get the azimuth of the scans
|
|---|
| 462 | get_elevation - get the elevation of the scans
|
|---|
| 463 | get_parangle - get the parallactic angle of the scans
|
|---|
| 464 | get_unit - get the current unit
|
|---|
| 465 | set_unit - set the abcissa unit to be used from this
|
|---|
| 466 | point on
|
|---|
| 467 | get_abcissa - get the abcissa values and name for a given
|
|---|
| 468 | row (time)
|
|---|
| 469 | get_column_names - get the names of the columns in the scantable
|
|---|
| 470 | for use with selector.set_query
|
|---|
| 471 | set_freqframe - set the frame info for the Spectral Axis
|
|---|
| 472 | (e.g. 'LSRK')
|
|---|
| 473 | set_doppler - set the doppler to be used from this point on
|
|---|
| 474 | set_dirframe - set the frame for the direction on the sky
|
|---|
| 475 | set_instrument - set the instrument name
|
|---|
| 476 | set_feedtype - set the feed type
|
|---|
| 477 | get_fluxunit - get the brightness flux unit
|
|---|
| 478 | set_fluxunit - set the brightness flux unit
|
|---|
| 479 | set_sourcetype - set the type of the source - source or reference
|
|---|
| 480 | create_mask - return an mask in the current unit
|
|---|
| 481 | for the given region. The specified regions
|
|---|
| 482 | are NOT masked
|
|---|
| 483 | get_restfreqs - get the current list of rest frequencies
|
|---|
| 484 | set_restfreqs - set a list of rest frequencies
|
|---|
| 485 | shift_refpix - shift the reference pixel of the IFs
|
|---|
| 486 | set_spectrum - overwrite the spectrum for a given row
|
|---|
| 487 | get_spectrum - retrieve the spectrum for a given
|
|---|
| 488 | get_mask - retrieve the mask for a given
|
|---|
| 489 | flag - flag selected channels in the data
|
|---|
| 490 | lag_flag - flag specified frequency in the data
|
|---|
| 491 | save - save the scantable to disk as either 'ASAP',
|
|---|
| 492 | 'SDFITS' or 'ASCII'
|
|---|
| 493 | nbeam,nif,nchan,npol - the number of beams/IFs/Pols/Chans
|
|---|
| 494 | nscan - the number of scans in the scantable
|
|---|
| 495 | nrow - the number of spectra in the scantable
|
|---|
| 496 | history - print the history of the scantable
|
|---|
| 497 | get_fit - get a fit which has been stored witnh the data
|
|---|
| 498 | average_time - return the (weighted) time average of a scan
|
|---|
| 499 | or a list of scans
|
|---|
| 500 | average_pol - average the polarisations together.
|
|---|
| 501 | average_beam - average the beams together.
|
|---|
| 502 | convert_pol - convert to a different polarisation type
|
|---|
| 503 | auto_quotient - return the on/off quotient with
|
|---|
| 504 | automatic detection of the on/off scans (closest
|
|---|
| 505 | in time off is selected)
|
|---|
| 506 | mx_quotient - Form a quotient using MX data (off beams)
|
|---|
| 507 | scale, *, / - return a scan scaled by a given factor
|
|---|
| 508 | add, +, - - return a scan with given value added
|
|---|
| 509 | bin - return a scan with binned channels
|
|---|
| 510 | resample - return a scan with resampled channels
|
|---|
| 511 | smooth - return the spectrally smoothed scan
|
|---|
| 512 | poly_baseline - fit a polynomial baseline to all Beams/IFs/Pols
|
|---|
| 513 | auto_poly_baseline - automatically fit a polynomial baseline
|
|---|
| 514 | recalc_azel - recalculate azimuth and elevation based on
|
|---|
| 515 | the pointing
|
|---|
| 516 | gain_el - apply gain-elevation correction
|
|---|
| 517 | opacity - apply opacity correction
|
|---|
| 518 | convert_flux - convert to and from Jy and Kelvin brightness
|
|---|
| 519 | units
|
|---|
| 520 | freq_align - align spectra in frequency frame
|
|---|
| 521 | invert_phase - Invert the phase of the cross-correlation
|
|---|
| 522 | swap_linears - Swap XX and YY (or RR LL)
|
|---|
| 523 | rotate_xyphase - rotate XY phase of cross correlation
|
|---|
| 524 | rotate_linpolphase - rotate the phase of the complex
|
|---|
| 525 | polarization O=Q+iU correlation
|
|---|
| 526 | freq_switch - perform frequency switching on the data
|
|---|
| 527 | stats - Determine the specified statistic, e.g. 'min'
|
|---|
| 528 | 'max', 'rms' etc.
|
|---|
| 529 | stddev - Determine the standard deviation of the current
|
|---|
| 530 | beam/if/pol
|
|---|
| 531 | [Selection]
|
|---|
| 532 | selector - a selection object to set a subset of a scantable
|
|---|
| 533 | set_scans - set (a list of) scans by index
|
|---|
| 534 | set_cycles - set (a list of) cycles by index
|
|---|
| 535 | set_beams - set (a list of) beamss by index
|
|---|
| 536 | set_ifs - set (a list of) ifs by index
|
|---|
| 537 | set_polarisations - set (a list of) polarisations by name
|
|---|
| 538 | or by index
|
|---|
| 539 | set_names - set a selection by name (wildcards allowed)
|
|---|
| 540 | set_tsys - set a selection by tsys thresholds
|
|---|
| 541 | set_query - set a selection by SQL-like query, e.g. BEAMNO==1
|
|---|
| 542 | ( also get_ functions for all these )
|
|---|
| 543 | reset - unset all selections
|
|---|
| 544 | + - merge two selections
|
|---|
| 545 |
|
|---|
| 546 | [Math] Mainly functions which operate on more than one scantable
|
|---|
| 547 |
|
|---|
| 548 | average_time - return the (weighted) time average
|
|---|
| 549 | of a list of scans
|
|---|
| 550 | quotient - return the on/off quotient
|
|---|
| 551 | simple_math - simple mathematical operations on two scantables,
|
|---|
| 552 | 'add', 'sub', 'mul', 'div'
|
|---|
| 553 | quotient - build quotient of the given on and off scans
|
|---|
| 554 | (matched pairs and 1 off - n on are valid)
|
|---|
| 555 | merge - merge a list of scantables
|
|---|
| 556 |
|
|---|
| 557 | [Line Catalog]
|
|---|
| 558 | linecatalog - a linecatalog wrapper, taking an ASCII or
|
|---|
| 559 | internal format table
|
|---|
| 560 | summary - print a summary of the current selection
|
|---|
| 561 | set_name - select a subset by name pattern, e.g. '*OH*'
|
|---|
| 562 | set_strength_limits - select a subset by line strength limits
|
|---|
| 563 | set_frequency_limits - select a subset by frequency limits
|
|---|
| 564 | reset - unset all selections
|
|---|
| 565 | save - save the current subset to a table (internal
|
|---|
| 566 | format)
|
|---|
| 567 | get_row - get the name and frequency from a specific
|
|---|
| 568 | row in the table
|
|---|
| 569 | [Fitting]
|
|---|
| 570 | fitter
|
|---|
| 571 | auto_fit - return a scan where the function is
|
|---|
| 572 | applied to all Beams/IFs/Pols.
|
|---|
| 573 | commit - return a new scan where the fits have been
|
|---|
| 574 | commited.
|
|---|
| 575 | fit - execute the actual fitting process
|
|---|
| 576 | store_fit - store the fit parameters in the data (scantable)
|
|---|
| 577 | get_chi2 - get the Chi^2
|
|---|
| 578 | set_scan - set the scantable to be fit
|
|---|
| 579 | set_function - set the fitting function
|
|---|
| 580 | set_parameters - set the parameters for the function(s), and
|
|---|
| 581 | set if they should be held fixed during fitting
|
|---|
| 582 | set_gauss_parameters - same as above but specialised for individual
|
|---|
| 583 | gaussian components
|
|---|
| 584 | get_parameters - get the fitted parameters
|
|---|
| 585 | plot - plot the resulting fit and/or components and
|
|---|
| 586 | residual
|
|---|
| 587 | [Plotter]
|
|---|
| 588 | asapplotter - a plotter for asap, default plotter is
|
|---|
| 589 | called 'plotter'
|
|---|
| 590 | plot - plot a scantable
|
|---|
| 591 | plot_lines - plot a linecatalog overlay
|
|---|
| 592 | save - save the plot to a file ('png' ,'ps' or 'eps')
|
|---|
| 593 | set_mode - set the state of the plotter, i.e.
|
|---|
| 594 | what is to be plotted 'colour stacked'
|
|---|
| 595 | and what 'panelled'
|
|---|
| 596 | set_selection - only plot a selected part of the data
|
|---|
| 597 | set_range - set a 'zoom' window [xmin,xmax,ymin,ymax]
|
|---|
| 598 | set_legend - specify user labels for the legend indeces
|
|---|
| 599 | set_title - specify user labels for the panel indeces
|
|---|
| 600 | set_abcissa - specify a user label for the abcissa
|
|---|
| 601 | set_ordinate - specify a user label for the ordinate
|
|---|
| 602 | set_layout - specify the multi-panel layout (rows,cols)
|
|---|
| 603 | set_colors - specify a set of colours to use
|
|---|
| 604 | set_linestyles - specify a set of linestyles to use if only
|
|---|
| 605 | using one color
|
|---|
| 606 | set_font - set general font properties, e.g. 'family'
|
|---|
| 607 | set_histogram - plot in historam style
|
|---|
| 608 | set_mask - set a plotting mask for a specific polarization
|
|---|
| 609 | text - draw text annotations either in data or relative
|
|---|
| 610 | coordinates
|
|---|
| 611 | arrow - draw arrow annotations either in data or relative
|
|---|
| 612 | coordinates
|
|---|
| 613 | axhline,axvline - draw horizontal/vertical lines
|
|---|
| 614 | axhspan,axvspan - draw horizontal/vertical regions
|
|---|
| 615 |
|
|---|
| 616 | xyplotter - matplotlib/pylab plotting functions
|
|---|
| 617 |
|
|---|
| 618 | [Reading files]
|
|---|
| 619 | reader - access rpfits/sdfits files
|
|---|
| 620 | open - attach reader to a file
|
|---|
| 621 | close - detach reader from file
|
|---|
| 622 | read - read in integrations
|
|---|
| 623 | summary - list info about all integrations
|
|---|
| 624 |
|
|---|
| 625 | [General]
|
|---|
| 626 | commands - this command
|
|---|
| 627 | print - print details about a variable
|
|---|
| 628 | list_scans - list all scantables created bt the user
|
|---|
| 629 | list_files - list all files readable by asap (default rpf)
|
|---|
| 630 | del - delete the given variable from memory
|
|---|
| 631 | range - create a list of values, e.g.
|
|---|
| 632 | range(3) = [0,1,2], range(2,5) = [2,3,4]
|
|---|
| 633 | help - print help for one of the listed functions
|
|---|
| 634 | execfile - execute an asap script, e.g. execfile('myscript')
|
|---|
| 635 | list_rcparameters - print out a list of possible values to be
|
|---|
| 636 | put into $HOME/.asaprc
|
|---|
| 637 | rc - set rc parameters from within asap
|
|---|
| 638 | mask_and,mask_or,
|
|---|
| 639 | mask_not - boolean operations on masks created with
|
|---|
| 640 | scantable.create_mask
|
|---|
| 641 |
|
|---|
| 642 | Note:
|
|---|
| 643 | How to use this with help:
|
|---|
| 644 | # function 'summary'
|
|---|
| 645 | [xxx] is just a category
|
|---|
| 646 | Every 'sub-level' in this list should be replaces by a '.' Period when
|
|---|
| 647 | using help
|
|---|
| 648 | Example:
|
|---|
| 649 | ASAP> help scantable # to get info on ths scantable
|
|---|
| 650 | ASAP> help scantable.summary # to get help on the scantable's
|
|---|
| 651 | ASAP> help average_time
|
|---|
| 652 |
|
|---|
| 653 | """
|
|---|
| 654 | if rcParams['verbose']:
|
|---|
| 655 | try:
|
|---|
| 656 | from IPython.genutils import page as pager
|
|---|
| 657 | except ImportError:
|
|---|
| 658 | from pydoc import pager
|
|---|
| 659 | pager(x)
|
|---|
| 660 | else:
|
|---|
| 661 | print x
|
|---|
| 662 | return
|
|---|
| 663 |
|
|---|
| 664 | def welcome():
|
|---|
| 665 | return """Welcome to ASAP v%s (%s) - the ATNF Spectral Analysis Package
|
|---|
| 666 |
|
|---|
| 667 | Please report any bugs via:
|
|---|
| 668 | http://svn.atnf.csiro.au/trac/asap/simpleticket
|
|---|
| 669 |
|
|---|
| 670 | [IMPORTANT: ASAP is 0-based]
|
|---|
| 671 | Type commands() to get a list of all available ASAP commands.""" % (__version__, __date__)
|
|---|
