<casaxml xsi:schemaLocation="http://casa.nrao.edu/schema/casa.xsd file:///opt/casa/code/xmlcasa/xml/casa.xsd" xmlns="http://casa.nrao.edu/schema/psetTypes.html" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<task type="function" name="virtualconcat" category="manipulation">
<shortdescription>Concatenate several visibility data sets into a multi-MS</shortdescription>
<param type="pathVec" name="vis" mustexist="true"><shortdescription>List of names of input visibility files to be concatenated</shortdescription><description>List of names of input visibility files to be concatenated</description>
<param type="string" name="concatvis"><shortdescription>Name of the output visibility file (a multi-MS)</shortdescription><description>Name of the output visibility file (a multi-MS)</description>
<param type="any" name="freqtol"><shortdescription>Frequency shift tolerance for considering data as the same spwid</shortdescription><description>Frequency shift tolerance for considering data as the same spwid</description>
<param type="any" name="dirtol"><shortdescription>Direction shift tolerance for considering data as the same field</shortdescription><description>Direction shift tolerance for considering data as the same field</description>
<param type="bool" name="respectname"><shortdescription>If true, fields with a different name are not merged even if their direction agrees</shortdescription><description>If true, fields with a different name are not merged even if their direction agrees</description>
<param type="doubleVec" name="visweightscale"><shortdescription>List of the weight scaling factors to be applied to the individual MSs</shortdescription><description>List of the weight scaling factors to be applied to the individual MSs</description>
<param type="bool" name="keepcopy"><shortdescription>If true, a copy of the input MSs is kept in their original place.</shortdescription><description>If true, a copy of the input MSs is kept in their original place.</description>
<param type="bool" name="copypointing"><shortdescription>If true, keep the POINTING table information in the output MMS. If false, don\'t.</shortdescription><description>If true, keep the POINTING table information in the output MMS. If false, don\'t.</description>
The list of data sets given in the vis argument are moved into an output
multi-MS data set concatvis and virtually concatenated.
NOTE: This task will modify the input datasets by moving them and reindexing them.
If you want to keep a copy of your original data, please set the parameter
There is no limit to the number of input data sets.
If none of the input data sets have any scratch columns (model and corrected
columns), none are created in the concatvis. Otherwise these columns are
created on output and initialized to their default value (1 in model column,