Hi Dominique,

There are a few ways to do this.

If you have the data in fasta format in your history already, skip converting to fasta-> tabular and just use that with the tool "FASTA manipulation -> Compute sequence length". Then run the statistics tool on the output.

Or, if this is the format you have to start with (tabular), the tool "Text Manipulation -> Compute" can be used with the option "length(c2)" to generate the length of column 2. Adjust the "c2" portion as needed if this is not your complete file or if you had to do extra manipulations to isolate these columns (potentially skip those steps and use the earlier file).


Galaxy team

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On 5/23/14 4:29 AM, Dominique Cowart wrote:


I am attempting to use Galaxy to calculate the mean sequence read length and identify the range of read lengths for my 454 data. The data has already been divided into columns:


I have attempted to use the "Summary Statistics" button, however it appears to only be for numerical data and not sequence data. Is this tool/task available
via Galaxy?

Thank you in advance,

Dominique Cowart

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