| 1 | import sys |
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| 2 | import inspect |
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| 3 | |
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| 4 | from asap.parameters import rcParams |
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| 5 | from asap.scantable import scantable |
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| 6 | |
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| 7 | |
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| 8 | # workaround for ipython, which redirects this if banner=0 in ipythonrc |
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| 9 | sys.stdout = sys.__stdout__ |
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| 10 | sys.stderr = sys.__stderr__ |
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| 11 | |
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| 12 | def version(): |
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| 13 | print "ASAP %s(%s)"% (__version__, __date__) |
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| 14 | |
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| 15 | def list_scans(t = scantable): |
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| 16 | print "The user created scantables are: ", |
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| 17 | globs=inspect.currentframe().f_back.f_locals.copy() |
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| 18 | out = [ k for k,v in globs.iteritems() \ |
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| 19 | if isinstance(v, scantable) and not k.startswith("_") ] |
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| 20 | print out |
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| 21 | return out |
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| 22 | |
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| 23 | def commands(): |
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| 24 | x = """\ |
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| 25 | [The scan container] |
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| 26 | scantable - a container for integrations/scans |
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| 27 | (can open asap/rpfits/sdfits and ms files) |
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| 28 | copy - returns a copy of a scan |
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| 29 | get_scan - gets a specific scan out of a scantable |
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| 30 | (by name or number) |
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| 31 | drop_scan - drops a specific scan out of a scantable |
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| 32 | (by number) |
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| 33 | set_selection - set a new subselection of the data |
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| 34 | get_selection - get the current selection object |
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| 35 | summary - print info about the scantable contents |
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| 36 | stats - get specified statistic of the spectra in |
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| 37 | the scantable |
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| 38 | stddev - get the standard deviation of the spectra |
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| 39 | in the scantable |
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| 40 | get_tsys - get the TSys |
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| 41 | get_time - get the timestamps of the integrations |
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| 42 | get_inttime - get the integration time |
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| 43 | get_sourcename - get the source names of the scans |
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| 44 | get_azimuth - get the azimuth of the scans |
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| 45 | get_elevation - get the elevation of the scans |
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| 46 | get_parangle - get the parallactic angle of the scans |
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| 47 | get_coordinate - get the spectral coordinate for the given row, |
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| 48 | which can be used for coordinate conversions |
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| 49 | get_weather - get the weather condition parameters |
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| 50 | get_unit - get the current unit |
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| 51 | set_unit - set the abcissa unit to be used from this |
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| 52 | point on |
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| 53 | get_abcissa - get the abcissa values and name for a given |
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| 54 | row (time) |
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| 55 | get_column_names - get the names of the columns in the scantable |
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| 56 | for use with selector.set_query |
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| 57 | set_freqframe - set the frame info for the Spectral Axis |
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| 58 | (e.g. 'LSRK') |
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| 59 | set_doppler - set the doppler to be used from this point on |
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| 60 | set_dirframe - set the frame for the direction on the sky |
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| 61 | set_instrument - set the instrument name |
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| 62 | set_feedtype - set the feed type |
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| 63 | get_fluxunit - get the brightness flux unit |
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| 64 | set_fluxunit - set the brightness flux unit |
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| 65 | set_sourcetype - set the type of the source - source or reference |
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| 66 | create_mask - return an mask in the current unit |
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| 67 | for the given region. The specified regions |
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| 68 | are NOT masked |
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| 69 | get_restfreqs - get the current list of rest frequencies |
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| 70 | set_restfreqs - set a list of rest frequencies |
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| 71 | shift_refpix - shift the reference pixel of the IFs |
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| 72 | set_spectrum - overwrite the spectrum for a given row |
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| 73 | get_spectrum - retrieve the spectrum for a given |
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| 74 | get_mask - retrieve the mask for a given |
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| 75 | flag - flag selected channels in the data |
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| 76 | lag_flag - flag specified frequency in the data |
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| 77 | save - save the scantable to disk as either 'ASAP', |
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| 78 | 'SDFITS' or 'ASCII' |
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| 79 | nbeam,nif,nchan,npol - the number of beams/IFs/Pols/Chans |
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| 80 | nscan - the number of scans in the scantable |
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| 81 | nrow - the number of spectra in the scantable |
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| 82 | history - print the history of the scantable |
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| 83 | get_fit - get a fit which has been stored witnh the data |
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| 84 | average_time - return the (weighted) time average of a scan |
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| 85 | or a list of scans |
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| 86 | average_pol - average the polarisations together. |
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| 87 | average_beam - average the beams together. |
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| 88 | convert_pol - convert to a different polarisation type |
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| 89 | auto_quotient - return the on/off quotient with |
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| 90 | automatic detection of the on/off scans (closest |
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| 91 | in time off is selected) |
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| 92 | mx_quotient - Form a quotient using MX data (off beams) |
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| 93 | scale, *, / - return a scan scaled by a given factor |
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| 94 | add, + - return a scan with given value added |
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| 95 | sub, - - return a scan with given value subtracted |
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| 96 | bin - return a scan with binned channels |
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| 97 | resample - return a scan with resampled channels |
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| 98 | smooth - return the spectrally smoothed scan |
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| 99 | poly_baseline - fit a polynomial baseline to all Beams/IFs/Pols |
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| 100 | auto_poly_baseline - automatically fit a polynomial baseline |
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| 101 | recalc_azel - recalculate azimuth and elevation based on |
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| 102 | the pointing |
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| 103 | gain_el - apply gain-elevation correction |
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| 104 | opacity - apply opacity correction |
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| 105 | convert_flux - convert to and from Jy and Kelvin brightness |
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| 106 | units |
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| 107 | freq_align - align spectra in frequency frame |
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| 108 | invert_phase - Invert the phase of the cross-correlation |
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| 109 | swap_linears - Swap XX and YY (or RR LL) |
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| 110 | rotate_xyphase - rotate XY phase of cross correlation |
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| 111 | rotate_linpolphase - rotate the phase of the complex |
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| 112 | polarization O=Q+iU correlation |
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| 113 | freq_switch - perform frequency switching on the data |
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| 114 | stats - Determine the specified statistic, e.g. 'min' |
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| 115 | 'max', 'rms' etc. |
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| 116 | stddev - Determine the standard deviation of the current |
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| 117 | beam/if/pol |
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| 118 | get_row_selector - get the selection object for a specified row |
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| 119 | number |
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| 120 | [Selection] |
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| 121 | selector - a selection object to set a subset of a scantable |
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| 122 | set_scans - set (a list of) scans by index |
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| 123 | set_cycles - set (a list of) cycles by index |
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| 124 | set_beams - set (a list of) beamss by index |
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| 125 | set_ifs - set (a list of) ifs by index |
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| 126 | set_polarisations - set (a list of) polarisations by name |
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| 127 | or by index |
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| 128 | set_names - set a selection by name (wildcards allowed) |
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| 129 | set_tsys - set a selection by tsys thresholds |
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| 130 | set_query - set a selection by SQL-like query, e.g. BEAMNO==1 |
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| 131 | ( also get_ functions for all these ) |
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| 132 | reset - unset all selections |
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| 133 | + - merge two selections |
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| 134 | |
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| 135 | [Math] Mainly functions which operate on more than one scantable |
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| 136 | |
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| 137 | average_time - return the (weighted) time average |
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| 138 | of a list of scans |
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| 139 | quotient - return the on/off quotient |
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| 140 | simple_math - simple mathematical operations on two scantables, |
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| 141 | 'add', 'sub', 'mul', 'div' |
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| 142 | quotient - build quotient of the given on and off scans |
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| 143 | (matched pairs and 1 off - n on are valid) |
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| 144 | merge - merge a list of scantables |
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| 145 | |
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| 146 | [Line Catalog] |
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| 147 | linecatalog - a linecatalog wrapper, taking an ASCII or |
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| 148 | internal format table |
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| 149 | summary - print a summary of the current selection |
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| 150 | set_name - select a subset by name pattern, e.g. '*OH*' |
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| 151 | set_strength_limits - select a subset by line strength limits |
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| 152 | set_frequency_limits - select a subset by frequency limits |
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| 153 | reset - unset all selections |
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| 154 | save - save the current subset to a table (internal |
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| 155 | format) |
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| 156 | get_row - get the name and frequency from a specific |
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| 157 | row in the table |
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| 158 | [Fitting] |
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| 159 | fitter |
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| 160 | auto_fit - return a scan where the function is |
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| 161 | applied to all Beams/IFs/Pols. |
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| 162 | commit - return a new scan where the fits have been |
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| 163 | commited. |
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| 164 | fit - execute the actual fitting process |
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| 165 | store_fit - store the fit parameters in the data (scantable) |
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| 166 | get_chi2 - get the Chi^2 |
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| 167 | set_scan - set the scantable to be fit |
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| 168 | set_function - set the fitting function |
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| 169 | set_parameters - set the parameters for the function(s), and |
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| 170 | set if they should be held fixed during fitting |
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| 171 | set_gauss_parameters - same as above but specialised for individual |
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| 172 | gaussian components |
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| 173 | get_parameters - get the fitted parameters |
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| 174 | plot - plot the resulting fit and/or components and |
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| 175 | residual |
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| 176 | [Plotter] |
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| 177 | asapplotter - a plotter for asap, default plotter is |
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| 178 | called 'plotter' |
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| 179 | plot - plot a scantable |
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| 180 | plot_lines - plot a linecatalog overlay |
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| 181 | plotazel - plot azimuth and elevation versus time |
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| 182 | plotpointing - plot telescope pointings |
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| 183 | save - save the plot to a file ('png' ,'ps' or 'eps') |
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| 184 | set_mode - set the state of the plotter, i.e. |
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| 185 | what is to be plotted 'colour stacked' |
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| 186 | and what 'panelled' |
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| 187 | set_selection - only plot a selected part of the data |
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| 188 | set_range - set a 'zoom' window [xmin,xmax,ymin,ymax] |
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| 189 | set_legend - specify user labels for the legend indeces |
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| 190 | set_title - specify user labels for the panel indeces |
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| 191 | set_abcissa - specify a user label for the abcissa |
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| 192 | set_ordinate - specify a user label for the ordinate |
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| 193 | set_layout - specify the multi-panel layout (rows,cols) |
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| 194 | set_colors - specify a set of colours to use |
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| 195 | set_linestyles - specify a set of linestyles to use if only |
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| 196 | using one color |
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| 197 | set_font - set general font properties, e.g. 'family' |
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| 198 | set_histogram - plot in historam style |
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| 199 | set_mask - set a plotting mask for a specific polarization |
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| 200 | text - draw text annotations either in data or relative |
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| 201 | coordinates |
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| 202 | arrow - draw arrow annotations either in data or relative |
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| 203 | coordinates |
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| 204 | axhline,axvline - draw horizontal/vertical lines |
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| 205 | axhspan,axvspan - draw horizontal/vertical regions |
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| 206 | annotate - draw an arrow with label |
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| 207 | create_mask - create a scnatble mask interactively |
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| 208 | |
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| 209 | xyplotter - matplotlib/pylab plotting functions |
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| 210 | |
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| 211 | [General] |
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| 212 | commands - this command |
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| 213 | print - print details about a variable |
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| 214 | list_scans - list all scantables created by the user |
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| 215 | list_files - list all files readable by asap (default rpf) |
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| 216 | del - delete the given variable from memory |
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| 217 | range - create a list of values, e.g. |
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| 218 | range(3) = [0,1,2], range(2,5) = [2,3,4] |
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| 219 | help - print help for one of the listed functions |
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| 220 | execfile - execute an asap script, e.g. execfile('myscript') |
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| 221 | list_rcparameters - print out a list of possible values to be |
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| 222 | put into $HOME/.asaprc |
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| 223 | rc - set rc parameters from within asap |
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| 224 | mask_and,mask_or, |
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| 225 | mask_not - boolean operations on masks created with |
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| 226 | scantable.create_mask |
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| 227 | skydip - gain opacity values from a sky dip observation |
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| 228 | opacity_model - compute opacities fro given frequencies based on |
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| 229 | atmospheric model |
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| 230 | |
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| 231 | Note: |
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| 232 | How to use this with help: |
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| 233 | # function 'summary' |
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| 234 | [xxx] is just a category |
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| 235 | Every 'sub-level' in this list should be replaces by a '.' Period when |
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| 236 | using help |
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| 237 | Example: |
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| 238 | ASAP> help scantable # to get info on ths scantable |
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| 239 | ASAP> help scantable.summary # to get help on the scantable's |
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| 240 | ASAP> help average_time |
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| 241 | |
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| 242 | """ |
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| 243 | if rcParams['verbose']: |
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| 244 | try: |
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| 245 | from IPython.genutils import page as pager |
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| 246 | except ImportError: |
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| 247 | from pydoc import pager |
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| 248 | pager(x) |
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| 249 | else: |
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| 250 | print x |
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| 251 | return |
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