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