Hello Lanelle,

A combination of text manipulations can extract the data into interval format. A good step-by-step example, including a video tutorial, is in the Using Galaxy paper & supplemental available here:
http://main.g2.bx.psu.edu/u/galaxyproject/p/using-galaxy-2012

Protocol #2 has examples of loading 4 files - the 3rd file, starting with dataset #3, is the one where a column of data that combines chrom, start, stop is manipulated to produce distinct columns and assigned standard datatypes. This example has a ".." instead of a "-" between the start and stop, so just adjust that part of the manipulation to be specific for your data when you come to it.

Hopefully this helps!

Jen
Galaxy team


On 10/3/12 11:28 AM, Lanelle Oni Edwards wrote:
Hi,
My name is Lanelle Edwards. I am a new galaxy user. I uploaded a tab delimited 
text file to my history. However, the first column of the data I imported is 
solely chromosome number and start and end position (ALL IN ONE COLUMN) in the 
format chrI:1000000-2000000. My question is: How can I filter out these values 
into separate columns using galaxy tools? For example: Having a separate column 
for chromosome number, column for start position, column for end position. I 
would really appreciate the help.

Thanks,
Lanelle Edwards
Lab Manger
University of Maryland
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