What is "None" bigwig signal values mean from pyBigWig bw.stats?

deeptools / pyBigWig

A python extension for quick access to bigWig and bigBed files

MIT License

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What is "None" bigwig signal values mean from pyBigWig bw.stats? #104

Closed kac2053 closed 4 years ago

kac2053 commented 4 years ago

Hi,

This isn't an issue but a question about pyBigWig bw.stats function. When extracting signal from bigwig, some signal values are labeled as "None". Do you happen know what "None" means.

I looked in IGV comparing the regions that have "None" signal versus the regions that have "0.0" signal values, and they both look the same.

Thank you.

dpryan79 commented 4 years ago

If memory serves you'll get None if there are no entries in the bigWig file within the region specified.