<tool id="addValue" name="Add column">
  <description>to an existing dataset</description>
  <command interpreter="perl">fixedValueColumn.pl $input $out_file1 "$exp" $iterate</command>
  <inputs>
     <param name="exp" size="20" type="text" value="1" label="Add this value"/>
    <param format="tabular" name="input" type="data" label="to Dataset" help="Dataset missing? See TIP below" />
    <param name="iterate" type="select" label="Iterate?">
      <option value="no">NO</option>
      <option value="yes">YES</option>
    </param>    
  </inputs>
  <outputs>
    <data format="input" name="out_file1" metadata_source="input"/>
  </outputs>
  <tests>
    <test>
      <param name="exp" value="1"/>
      <param name="input" value="1.bed"/>
      <param name="iterate" value="no"/>
      <output name="out_file1" file="eq-addvalue.dat"/>
    </test>
  </tests>
  <help>

.. class:: infomark

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

-----

**What it does**

You can enter any value and it will be added as a new column to your dataset

-----

**Example**

If you original data looks like this::

    chr1 10  100 geneA
    chr2 200 300 geneB
    chr2 400 500 geneC

Typing **+** in the text box will generate::

    chr1 10  100 geneA +
    chr2 200 300 geneB +
    chr2 400 500 geneC +
     

You can also add line numbers by selecting **Iterate: YES**. In this case if you enter **1** in the text box you will get::

    chr1 10  100 geneA 1
    chr2 200 300 geneB 2
    chr2 400 500 geneC 3



</help>
</tool>