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77 lines
2.7 KiB
XML
77 lines
2.7 KiB
XML
<tool id="histogram_rpy" name="Histogram" version="1.0.3">
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<description>of a numeric column</description>
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<command interpreter="python">histogram.py $input $out_file1 $numerical_column "$title" "$xlab" $breaks $density $frequency</command>
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<inputs>
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<param name="input" type="data" format="tabular" label="Dataset" help="Dataset missing? See TIP below"/>
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<param name="numerical_column" type="data_column" data_ref="input" numerical="True" label="Numerical column for x axis" />
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<param name="breaks" type="integer" size="4" value="0" label="Number of breaks (bars)"/>
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<param name="title" type="text" size="30" value="Histogram" label="Plot title"/>
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<param name="xlab" type="text" size="30" value="V1" label="Label for x axis"/>
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<param name="density" type="boolean" checked="yes" label="Include smoothed density"/>
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<param name="frequency" type="boolean" checked="no" label="Plot as frequency (counts)"/>
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</inputs>
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<outputs>
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<data format="pdf" name="out_file1" />
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</outputs>
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<tests>
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<test>
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<param name="input" value="histogram_in1.tabular" ftype="tabular"/>
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<param name="numerical_column" value="2"/>
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<param name="breaks" value="0"/>
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<param name="title" value="Histogram"/>
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<param name="xlab" value="V1"/>
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<param name="density" value="true"/>
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<param name="frequency" value="false"/>
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<output name="out_file1" file="histogram_out1.pdf"/>
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</test>
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</tests>
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<requirements>
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<requirement type="python-module">rpy</requirement>
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</requirements>
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<help>
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.. class:: infomark
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**TIP:** To remove comment lines that do not begin with a *#* character, use *Text Manipulation->Remove beginning*
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.. class:: infomark
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**TIP:** If your data is not TAB delimited, use *Text Manipulation->Convert*
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-----
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**Syntax**
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This tool computes a histogram of the numerical values in a column of a dataset.
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- All invalid, blank and comment lines in the dataset are skipped. The number of skipped lines is displayed in the resulting history item.
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- **Column for x axis** - only numerical columns are possible.
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- **Number of breaks(bars)** - breakpoints between histogram cells. Value of '0' will determine breaks automatically.
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- **Plot title** - the histogram title.
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- **Label for x axis** - the label of the x axis for the histogram.
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- **Include smoothed density** - if checked, the resulting graph will join the given corresponding points with line segments.
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-----
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**Example**
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- Input file::
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1 68 4.1
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2 71 4.6
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3 62 3.8
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4 75 4.4
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5 58 3.2
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6 60 3.1
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7 67 3.8
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8 68 4.1
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9 71 4.3
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10 69 3.7
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- Create a histogram on column 2 of the above dataset.
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.. image:: ./static/images/histogram2.png
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</help>
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</tool>
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