casa5

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

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

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<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">

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<!-- This is the task interface to ia.fitprofile for spectral index fitting          -->

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<task type="function" name="spxfit" category="analysis" visibility="experimental">

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<shortdescription>Fit a 1-dimensional model(s) to an image(s) or region for determination of spectral index.</shortdescription>

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<description>

</description>

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<input>

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

        <any type="variant" listtypes="string stringArray"/>

        <description>Name of the input image(s)</description>

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

        <example>imagename='ngc5921_task.image'</example>

    </param>

    <param type="string" direction="in" name="box">

        <description>Rectangular region to select in direction plane. Default is to use the entire direction plane.</description>

        <value/>

        <example>box="4,4,10,10"</example>

    </param>

    <param type="string" direction="in" name="region">

        <description>Region selection. Default is to use the full image.</description>

        <value/>

        <example>region="myregion.rgn"</example>

    </param>

    <param type="string" direction="in" name="chans">

        <description>Channels to use. Default is to use all channels.</description>

        <value/>

    </param>

    <param type="string" direction="in" name="stokes">

        <description>Stokes planes to use. Default is to use all Stokes planes.</description>

        <value/>

        <example>stokes="I"</example>

    </param>

    <param type="int" direction="in" name="axis">

        <description>The profile axis. Default: use the spectral axis if one exists, axis 0 otherwise (&lt;0).</description>

        <value>-1</value>

        <example>axis=3</example>

    </param>

    <param type="string" direction="in" name="mask">

        <description>Mask to use. Default is none.</description>

        <value></value>

    </param>

    <param type="int" direction="in" name="minpts">

        <description>Minimum number of unmasked points necessary to attempt fit.</description>

        <value>1</value>

    </param>

    <param type="bool" direction="in" name="multifit">

        <description>If true, fit a profile along the desired axis at each pixel in the specified region. If false, average the non-fit axis pixels and do a single fit to that average profile. Default False.</description>

        <value>False</value>

        <example>multifit=True</example>

     </param>

     <param type="string" direction="in" name="spxtype">

        <description>Type of function to fit. "plp" = power logarithmic polynomial, "ltp" = logarithmic transformed polynomial.</description>