casa5

<?xml version="1.0" encoding="UTF-8"?>

<?xml-stylesheet type="text/xsl" ?>

<casaxml xmlns="http://casa.nrao.edu/schema/psetTypes.html"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://casa.nrao.edu/schema/casa.xsd

file:///opt/casa/code/xmlcasa/xml/casa.xsd">

​

<task type="function" name="testconcat" category="utility, manipulation">

<shortdescription>Concatenate the subtables of several visibility data sets, not the MAIN bulk data.</shortdescription>

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<input>

  <param type="stringArray" name="vis" mustexist="true">

    <description>Name(s) of input visibility files to be test-concatenated</description>

    <value></value>

  </param>

​

  <param type="string" name="testconcatvis">

    <description>Name of output MS containing the merged subtables</description>

    <value></value>

  </param>

  <param type="any" name="freqtol" >

    <description>Frequency shift tolerance for considering data as the same spwid</description>

    <any type="variant"/>

    <value type="string"></value>

  </param>

​

  <param type="any" name="dirtol">

    <description>Direction shift tolerance for considering data as the same field</description>

    <any type="variant"/>

    <value type="string"></value>

  </param>

​

  <param type="bool" name="copypointing">

    <description>Copy all rows of the POINTING table.</description>

    <value>True</value>

  </param>

​

</input>

<example>

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The list of data sets given in the vis argument are concatenated into an output

data set in testconcatvis without the bulk data of the MAIN table.  

This is useful for obtaining the information in the merged subtables without

actually performing a time-consuming concatenation of the MAIN tables on disk.

​

​

Keyword arguments:

vis -- Name of input visibility files for which the subtables are to be combined

        default: none; example: vis = 'mydata.ms',

             vis=['src2.ms','ngc5921.ms','ngc315.ms']

testconcatvis -- Name of MS that will contain the concatenated subtables

        default: none; example: testconcatvis='test.ms'

​

freqtol -- Frequency shift tolerance for considering data to be in the same

           spwid.  The number of channels must also be the same.

        default: ''  do not combine unless frequencies are equal

        example: freqtol='10MHz' will not combine spwid unless they are

           within 10 MHz.

        Note: This option is useful to conbine spectral windows with very slight

           frequency differences caused by Doppler tracking, for example.

​

dirtol -- Direction shift tolerance for considering data as the same field