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removing non-proteotypic peptide #585

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ibphuangchen opened this issue Nov 17, 2022 · 0 comments

ibphuangchen commented Nov 17, 2022 •

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I felt that the code used to remove non-proteotypic peptide might not work as expected:

keep <- tapply(x[, accession], x[, spectrumID], function(xx) length(unique(xx))) == 1
x <- x[keep, ]
n3 <- nrow(x)

I found this out when I was debugging my issues. length(keep) might not be the same with nrow(x). Probably what you mean is:

keep <- tapply(x[, accession], x[, spectrumID], function(xx) length(unique(xx))) == 1
x <- x[x[,spectrumID] %in% names(keep)[keep],]
n3 <- nrow(x)

Is that right?

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