Hi, I need to do some computation based on subset sampling from the original
fastq file. For example, the file I have from one lane has 30 million reads,
I'd like to sample 3 subsets from the 30 million reads: 20, 10, 5 millions from
the original 30 M reads. And the bigger set contains the smaller sets, ie, all
5 million reads are within the 10 and 20 million sets, and 10 M is in the 20 M
set.
It appears to me that I need to generate a series of random number and
re-order the original read file according to those random number to ensure the
enclosure. Could somebody tell me a way to re-ordering the reads based a set of
random numbers? Thanks.
-Kunbin
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