<tool id="SumTest_rpy" name="SumTest">
  <description>Sum of numbers from one column</description>
  <command interpreter="python">SumTest.py $input $out_file1 $col1</command>
  <inputs>
    <param name="input" type="data" format="tabular" label="Dataset"/>
    <param name="col1" type="data_column" data_ref="input" numerical="True" label="Numerical column for x axis" />
  </inputs>
  <outputs>
    <data format="txt" name="out_file1" />
  </outputs>
  <requirements>
    <requirement type="python-module">rpy</requirement>
  </requirements>
  <help>

.. class:: infomark

**TIP:** If your data is not TAB delimited, use *Text Manipulation-&gt;Convert*

-----

**Syntax**

This tool creates a simple sum from numeric values of a selected dataset. 

**Example**

- Input file::

    1
    2
    3
    4
    5
    

</help>
</tool>