Trimming files in GenePattern using the SelectFileMatrix module

-----
In this video step, we will trim files in GenePattern using the SelectFileMatrix module.

While SelectFileMatrix can operate on any delimited text file, we will be using the results of an ExtractComparativeMarkerResults job as our input.

Under the jobs tab click the filtered "Normals_Leu" GCT file and choose SelectFileMatrix to send it to the module.

Set parameters "start row" to "3" and "end row" to "53". Finally, set both "start column" and "end column" to "2".

Run the job; your output should be a .txt text file.