Closed nh13 closed 8 years ago
I don't think 5 is a valid FLAG value. 0, 4, and 16 are valid for single end sequencing, where as 141, 77, 181, 117, 137, 133, 73, 89, 69, 153, 97, 81, 161, 145, 129, 65, 177, 113, 99, 83, 163, and 147 are valid for paired-end sequences. All other should not be valid...although they occasionally crop up every so often.
It's a valid flag (see the SAM spec, of which I am an author). You are not producing a single-end read here, but a paired end read with one end all Ns.
… end of the pair is unmapped)