Hi,
I was just looking through the SAM format spec again and I've come across something that confuses me.
The text for the 'SEQ' field is:
"query SEQuence; “=” for a match to the reference; n/N/. for ambiguity; cases are not maintained"
In practice, I've never seen a "=" in the SEQ field; is this supposed to be an optional way of using the format, i.e. using a combination of "=" and "N" instead of the actual query sequence?
Thanks,
Bio
I was just looking through the SAM format spec again and I've come across something that confuses me.
The text for the 'SEQ' field is:
"query SEQuence; “=” for a match to the reference; n/N/. for ambiguity; cases are not maintained"
In practice, I've never seen a "=" in the SEQ field; is this supposed to be an optional way of using the format, i.e. using a combination of "=" and "N" instead of the actual query sequence?
Thanks,
Bio
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