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Old 12-10-2012, 12:49 PM   #1
Location: ND, USA

Join Date: Oct 2011
Posts: 28
Default Transcript length/frequncy plot

I've created a few different assemblies, and I'd like to make a dotplot of the number of transcripts at a certain length. I'm using R or python. Right now I've got to the point where my data looks like this (each individual transcript is listed):

Line number, Data set, Length

I want to count the number of times a certain length transcript occurs so I can plot length vs. frequency and show which assemblies are generating longer transcripts. I can do this with R once I have the frequencies, but I can't figure out how to do that. Ultimately, I'd like to turn that file into something like:

Length, Quantity
1258, 38
517, 79

Etc...any recommendations on how to transform this?
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