view featureselect/toolrfe.xml @ 4:5364cf43a8c1 draft

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<tool id="featureSelectR" name="Feature Selection" >
<description>
 This tool used for extract best feature subsets cantaining input data for model building.   
</description>
<!--command interpreter="bash">step3run.sh $file1 $model $output1  2>/dev/null </command-->
<requirements>
        <requirement type="set_environment">FEATURE_SELECTION_R</requirement>
                 <requirement type="set_environment">R_ROOT_DIR</requirement>
    <requirement type="package" version="3.2.0">R</requirement>
    <requirement type="package" version="1.0.0">caret-tools</requirement>
</requirements>
<command interpreter="Rscript">feature_selection.R $input $profile $finalset $function1 $resampling $repeat $number $corcutoff > /dev/null 2>&amp;1 </command>

<inputs>
<param name="input"  type="data" label="Select input data file" help="input .RData file" />
<param name="function1" type="select" display="radio" label="Select appropriate function for algorithm"  >
                <option value="rfFuncs" selected="true">random forest based function </option>
                <option value="lmFuncs">linear model based function</option>
                <option value="treebagFuncs">treebag(CART) based function</option>
                <option value="nbFuncs">neive bayes based function</option>
</param>

<param name="corcutoff"  type="float" value= "0.8" min="0.0" max = "1.0" label="Select correlation cutoff" help="values bewteen 0-1. fileds above cufoff value removed from data " />
<param name="resampling" type="select" label="Select appropriate resampling method"  >
                <option value="repeatedcv" selected="true">repeatedcv </option>
                <option value="boot">boot</option>
                <option value="cv">cv</option>
                <option value="boot632">boot632</option>
</param>
 <param name="repeat" type="select" label="Set Number of times to repeat" help="default is 3 ">
               <option value="3" selected="true">3</option>
                <option value="1">1</option>
                <option value="5">5</option>
                <option value="10">10</option>
        </param>
<param name="number" type="select" label="Set Number of times Resample" help="default is 10">
                <option value="10" selected="true">10</option>
                <option value="5">5</option>
                <option value="15">15</option>
                <option value="20">20</option>
                <option value="25">25</option>
        </param>

</inputs>
<outputs>
<data type="data" format="data" name="profile" label="$function1-profile" />
<data type= "data" format="data" name="finalset" label="Selected_feature.RData "/>
</outputs>
<help>
.. class:: infomark

**RFE based feature selection for classification and regression**

Input file must be  RData file obtained by converting csv file in to RData.

output  "Selected_feature.RData"  file used for model building purpose.While profile

represents feature selection model.

Correlation cutoff value is desired for choosing independent variables For example

Cutoff value = 0.8 removes all descriptors sharing equal or highet correlation values.

User may choose varous resampling methods in combination with repeats and times of resample.



</help>


<tests>
<test>
          <param name="input" value="testinput.RData"/>
          <param name="function1"  value="rfFuncs" />
          <param name="corcutoff"  value="0.6" />
          <param name="resampling"  value="repeatedcv" />
          <param name="repeat"  value="1" />
          <param name="number"  value="5" />


          <output name="profile" file="rfprofile.RData" compare="sim_size" delta="2000000" />
          <output name="finalset" file="selected_fet.RData" compare="sim_size" delta="2000000"/>
    </test>
</tests>


</tool>