Tool for detecting valleys in Chip-seq like data?
Hello,
We would like to know about the tools used in detecting valleys in Chip-seq like data. Can the tools that detect peaks also detect valleys? Or, are there specific tools for valley detection?
Best,
-Kaivan
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If you are comfortable with python, scipy has a find_peaks function you can use. This could be pretty easily adapted to your situation by multiplying your signal value by -1 to flip the data signal, then finding the peaks of the new signal.
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How do you distinguish valleys from lack of signal/sequencing depth?
Also: regions which can not be mapped using reads of length X.
I know of https://academic.oup.com/nar/article/44/9/4037/2462443 but never used it. Don't ask me whether reliable or not. For which analysis do you need that?
Thank you all. I'll check the scipy tool and the paper.