I found regular expression could be available in the tool (filter and sort)
->Filter. I wonder whether it could be the same in the tool (Text
Manipulation) ->Compute. I have checked that the fuction "len(c4.split('_'))"
would return error. So, could anyone tell me if it was possible like this?
The file A:
chr1 10 40 NM_1234_exon_1
chr2 50 70 NM_1234_exon_2
Change the file A to the file B such as:
chr1 10 40 NM_1234
chr2 50 70 NM_1234
May it is useless in the example. But the way could solve problems I met.
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