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galaxy/tools/plotting/bar_chart.xml
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XML

<tool id="barchart_gnuplot" name="Bar chart">
<description>for multiple columns</description>
<command interpreter="python">
#if $xtic.userSpecified == "Yes": #bar_chart.py $input $xtic.xticColumn $colList "$title" "$ylabel" $ymin $ymax $out_file1 "$pdf_size"
#else: #bar_chart.py $input 0 $colList "$title" "$ylabel" $ymin $ymax $out_file1 "$pdf_size"
#end if
</command>
<inputs>
<param name="input" type="data" format="tabular" label="Dataset" help="Query missing? See TIP below"/>
<conditional name="xtic">
<param name="userSpecified" type="select" label="Use X Tick labels?" help="see example below">
<option value="Yes">Yes</option>
<option value="No">No</option>
</param>
<when value="Yes">
<param name="xticColumn" type="data_column" data_ref="input" numerical="False" label="Use this column for X Tick labels" />
</when>
<when value="No">
</when>
</conditional>
<param name="colList" label="Numerical columns" type="data_column" numerical="True" multiple="True" data_ref="input" help="Multi-select list - hold the appropriate key while clicking to select multiple columns" />
<param name="title" type="text" size="30" value="Bar Chart" label="Plot title"/>
<param name="ylabel" type="text" size="30" value="V1" label="Label for Y axis"/>
<param name="ymin" type="integer" size="4" value="0" label="Minimal value on Y axis" help="set to 0 for autoscaling"/>
<param name="ymax" type="integer" size="4" value="0" label="Maximal value on Y axis" help="set to 0 for autoscaling"/>
<param name="pdf_size" type="select" label="Choose chart size (pixels)">
<option value="800,600">Normal: 800 by 600</option>
<option value="640,480">Small: 640 by 480</option>
<option value="1480,800">Large: 1480 by 800</option>
<option value="600,800">Normal Flipped: 600 by 800</option>
<option value="480,640">Small Flipped: 480 by 640</option>
<option value="800,1480">Large Flipped: 800 by 1480</option>
</param>
</inputs>
<outputs>
<data format="png" name="out_file1" />
</outputs>
<requirements>
<requirement type="python-module">Gnuplot</requirement>
<requirement type="python-module">Numeric</requirement>
</requirements>
<help>
**What it does**
This tool builds a bar chart on one or more columns. Suppose you have dataset like this one::
Gene1 10 15
Gene2 20 14
Gene3 67 45
Gene4 55 12
Graphing columns 2 and 3 while using column 1 for X Tick Labels will produce the following plot:
.. image:: ../static/images/bar_chart.png
:height: 324
:width: 540
</help>
</tool>