Early check for column headers in `count(.., functional_map="file.map")`

ngless-toolkit / ngless

NGLess: NGS with less work

https://ngless.embl.de

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Closed luispedro closed 5 years ago

luispedro commented 6 years ago

If the user does

c = count(mapped, features=['DOES_NOT_EXIST'], functional_map='mymap.map')

and DOES_NOT_EXIST is missing, then the user will get an error only when count is run.

NGLess should be able to warn immediately.

luispedro commented 5 years ago

Was implemented in 7f92dd6f0afef6151d245761449757fac956c4b5