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="delmod" category="calibration">

    <shortdescription>Deletes model representations in the MS</shortdescription>

​

<input>

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

        <description>Name of input visibility file (MS)</description>

        <value></value>

    </param>

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

        <description>Delete the on-the-fly model data keywords</description>

        <value>True</value>

    </param>

​

        <param type="string" name="field" subparam="true">

                <description>Select field using field id(s) or field name(s)</description>

                <value></value>

        </param>

​

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

        <description>Delete the MODEL_DATA scr col (if it exists)</description>

        <value>False</value>

    </param>

​

   <constraints>

        <when param="otf">

                <equals type="bool" value="True">

                        <default param="field"><value type="string"/></default>

                </equals>

                <equals type="bool" value="False"/>

        </when>

   </constraints>

​

​

​

    </input>

<returns type="void"/>

​

<example>

​

      This utility task is to be used to delete the model visibility

      data representations in the MS.  The 'otf' representation is

      the new (as of v3.4) 'scratch-less' model data, stored as

      keywords in the MS header containing model data formation

      instructions.  It is generated by the setjy, ft, and clean

      tasks (usescratch=F), and if present, overrides the 

      old-fashioned MODEL_DATA column (if present).  If a user

      wishes to use the MODEL_DATA column _after_ having operated

      with the 'otf' representation, this task can be used

      to delete the 'otf' represenatation to make the MODEL_DATA

      column visible.  (Create the MODEL_DATA column by using

      usescratch=T in setjy, ft, or clean; or by running the

      clearcal task with addmodel=T.)

​

      If otf=T, specific fields can be selected for deletion

      using standard field selection semantics.  If field='',

      all fields' models will be deleted.