source: branches/Release-2-fixes/web/commands.html@ 1713

Last change on this file since 1713 was 675, checked in by mar637, 19 years ago

reflect scantable changes - auto_quotient added

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3<head>
4<?php include("base.inc"); ?>
5<title>ASAP - ATNF Spectral line Analysis Package</title>
6<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
7<meta name="DC.Creator" lang="en" content="personalName=Marquarding,Malte" />
8<meta name="ATNF.Maintainer" content="contactName=Marquarding,Malte" />
9<meta name="DC.Title" lang="en" content="Homepage of Malte Marquarding" />
10<meta name="DC.Title.alt" lang="en" content="" />
11<meta name="DC.Subject" lang="en" content="spectral line" />
12<meta name="DC.Description" lang="en"
13content="Just some links and conatact details" />
14<meta name="DC.Date.created" scheme="ISO8601" content="2004-11-12" />
15<meta name="ATNF.Site" content="Marsfield" />
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20<!--
21B.asap {
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24}
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27}
28PRE.commands {
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36<?php
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38title_crumbs("/computing/software/");
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40<!-- Start Content -->
41<h1><a href="index.html">ASAP</a> 'commands'</h1>
42<pre class="commands">
43ASAP> commands()
44
45 [The scan container]
46 scantable - a container for integrations/scans
47 (can open asap/rpfits/sdfits and ms files)
48 copy - returns a copy of a scan
49 get_scan - gets a specific scan out of a scantable
50 summary - print info about the scantable contents
51 set_cursor - set a specific Beam/IF/Pol 'cursor' for
52 further use
53 get_cursor - print out the current cursor position
54 stats - get specified statistic of the spectra in
55 the scantable
56 stddev - get the standard deviation of the spectra
57 in the scantable
58 get_tsys - get the TSys
59 get_time - get the timestamps of the integrations
60 get_unit - get the currnt unit
61 set_unit - set the abcissa unit to be used from this
62 point on
63 get_abcissa - get the abcissa values and name for a given
64 row (time)
65 set_freqframe - set the frame info for the Spectral Axis
66 (e.g. 'LSRK')
67 set_doppler - set the doppler to be used from this point on
68 set_instrument - set the instrument name
69 get_fluxunit - get the brightness flux unit
70 set_fluxunit - set the brightness flux unit
71 create_mask - return an mask in the current unit
72 for the given region. The specified regions
73 are NOT masked
74 get_restfreqs - get the current list of rest frequencies
75 set_restfreqs - set a list of rest frequencies
76 lines - print list of known spectral lines
77 flag_spectrum - flag a whole Beam/IF/Pol
78 save - save the scantable to disk as either 'ASAP'
79 or 'SDFITS'
80 nbeam,nif,nchan,npol - the number of beams/IFs/Pols/Chans
81 history - print the history of the scantable
82 get_fit - get a fit which has been stored witnh the data
83 average_time - return the (weighted) time average of a scan
84 or a list of scans
85 average_pol - average the polarisations together.
86 The dimension won't be reduced and
87 all polarisations will contain the
88 averaged spectrum.
89 auto_quotient - return the on/off quotient with
90 automatic detection of the on/off scans
91 quotient - return the on/off quotient
92 scale - return a scan scaled by a given factor
93 add - return a scan with given value added
94 bin - return a scan with binned channels
95 resample - return a scan with resampled channels
96 smooth - return the spectrally smoothed scan
97 poly_baseline - fit a polynomial baseline to all Beams/IFs/Pols
98 auto_poly_baseline - automatically fit a polynomial baseline
99 gain_el - apply gain-elevation correction
100 opacity - apply opacity correction
101 convert_flux - convert to and from Jy and Kelvin brightness
102 units
103 freq_align - align spectra in frequency frame
104 rotate_xyphase - rotate XY phase of cross correlation
105 rotate_linpolphase - rotate the phase of the complex
106 polarization O=Q+iU correlation
107 [Math] Mainly functions which operate on more than one scantable
108
109 average_time - return the (weighted) time average
110 of a list of scans
111 quotient - return the on/off quotient
112 simple_math - simple mathematical operations on two scantables,
113 'add', 'sub', 'mul', 'div'
114 [Fitting]
115 fitter
116 auto_fit - return a scan where the function is
117 applied to all Beams/IFs/Pols.
118 commit - return a new scan where the fits have been
119 commited.
120 fit - execute the actual fitting process
121 store_fit - store the fit paramaters in the data (scantable)
122 get_chi2 - get the Chi^2
123 set_scan - set the scantable to be fit
124 set_function - set the fitting function
125 set_parameters - set the parameters for the function(s), and
126 set if they should be held fixed during fitting
127 set_gauss_parameters - same as above but specialised for individual
128 gaussian components
129 get_parameters - get the fitted parameters
130 plot - plot the resulting fit and/or components and
131 residual
132 [Plotter]
133 asapplotter - a plotter for asap, default plotter is
134 called 'plotter'
135 plot - plot a (list of) scantable
136 save - save the plot to a file ('png' ,'ps' or 'eps')
137 set_mode - set the state of the plotter, i.e.
138 what is to be plotted 'colour stacked'
139 and what 'panelled'
140 set_cursor - only plot a selected part of the data
141 set_range - set a 'zoom' window
142 set_legend - specify user labels for the legend indeces
143 set_title - specify user labels for the panel indeces
144 set_ordinate - specify a user label for the ordinate
145 set_abcissa - specify a user label for the abcissa
146 set_layout - specify the multi-panel layout (rows,cols)
147
148 [Reading files]
149 reader - access rpfits/sdfits files
150 read - read in integrations
151 summary - list info about all integrations
152
153 [General]
154 commands - this command
155 print - print details about a variable
156 list_scans - list all scantables created bt the user
157 del - delete the given variable from memory
158 range - create a list of values, e.g.
159 range(3) = [0,1,2], range(2,5) = [2,3,4]
160 help - print help for one of the listed functions
161 execfile - execute an asap script, e.g. execfile('myscript')
162 list_rcparameters - print out a list of possible values to be
163 put into $HOME/.asaprc
164 mask_and,mask_or,
165 mask_not - boolean operations on masks created with
166 scantable.create_mask
167
168 Note:
169 How to use this with help:
170 # function 'summary'
171 [xxx] is just a category
172 Every 'sub-level' in this list should be replaces by a '.' Period when
173 using help
174 Example:
175 ASAP> help scantable # to get info on ths scantable
176 ASAP> help scantable.summary # to get help on the scantable's
177 ASAP> help average_time
178
179</pre>
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