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author anmoljh
date Fri, 06 Apr 2018 08:46:01 -0400
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1 <tool id="featureSelectR" name="Feature Selection" version="1.0">
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2 <description>
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3 This tool used for extract best feature subsets cantaining input data for model building.
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4 </description>
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5
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6 <requirements>
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7 <requirement type="package" version="3.2.1">R</requirement>
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8 <requirement type="package" version="1.0">carettools</requirement>
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9 </requirements>
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10
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11 <stdio>
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12 <exit_code range="1:" />
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13 </stdio>
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14
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15 <command interpreter="Rscript">feature_selection.R $input $profile $finalset $function1 $resampling $repeat $number $corcutoff $SAMPLING \${GALAXY_SLOTS:-1} >/dev/null 2>&amp;1 </command>
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16
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17 <inputs>
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18 <param name="input" type="data" format="rdata" label="Select input data file" help="input .RData file" />
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19 <param name="SAMPLING" type="select" label="Select Sampling Method for imbalanced data" help="Defualt is with No sampling. you may choose downsample or upsample" >
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20 <option value="garBage" selected="true">No Sampling</option>
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21 <option value="downsampling">downsample</option>
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22 <option value="upsampling">upsample</option>
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23 </param>
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24 <param name="function1" type="select" display="radio" label="Select appropriate function for algorithm" >
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25 <option value="rfFuncs" selected="true">random forest based function </option>
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26 <option value="lmFuncs">linear model based function</option>
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27 <option value="treebagFuncs">treebag(CART) based function</option>
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28 <option value="nbFuncs">neive bayes based function</option>
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29 </param>
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30
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31 <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 " />
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32 <param name="resampling" type="select" label="Select appropriate resampling method" >
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33 <option value="repeatedcv" selected="true">repeatedcv </option>
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34 <option value="boot">boot</option>
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35 <option value="cv">cv</option>
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36 <option value="boot632">boot632</option>
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37 </param>
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38
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39 <param name="repeat" type="select" label="Set Number of times to repeat" help="default is 3 ">
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40 <option value="3" selected="true">3</option>
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41 <option value="5">5</option>
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42 <option value="7">7</option>
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43 <option value="10">10</option>
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44 </param>
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45 <param name="number" type="select" label="Set Number of times Resample" help="default is 10">
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46 <option value="10" selected="true">10</option>
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47 <option value="5">5</option>
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48 <option value="15">15</option>
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49 <option value="20">20</option>
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50 <option value="25">25</option>
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51 </param>
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52 </inputs>
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53
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54 <outputs>
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55 <data format="data" name="profile" label="$function1-profile" />
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56 <data format="rdata" name="finalset" label="Selected_feature.RData "/>
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57 </outputs>
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58
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59 <tests>
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60 <test>
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61 <param name="input" value="testinput.RData"/>
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62 <param name="function1" value="rfFuncs" />
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63 <param name="corcutoff" value="0.6" />
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64 <param name="resampling" value="repeatedcv" />
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65 <param name="repeat" value="1" />
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66 <param name="number" value="5" />
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67 <param name="SAMPLING" value="garb" />
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68 <param name="cores" value="1" />
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69 <output name="profile" file="rfprofile.RData" compare="sim_size" delta="2000000" />
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70 <output name="finalset" file="selected_fet.RData" compare="sim_size" delta="2000000"/>
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71 </test>
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72 </tests>
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73
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74 <help>
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75
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76 .. class:: infomark
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77
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78 **RFE based feature selection for classification and regression**
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79
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80 Input file must be RData file obtained by converting csv file in to RData.
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81
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82 output "Selected_feature.RData" file used for model building purpose.While profile
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83
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84 represents feature selection model.
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85
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86 Correlation cutoff value is desired for choosing independent variables For example
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87
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88 Cutoff value = 0.8 removes all descriptors sharing equal or highet correlation values.
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89
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90 User may choose varous resampling methods in combination with repeats and times of resample.
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91
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92 </help>
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93
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94
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95
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96 </tool>