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Topic: matchedFilter terminates too early on an EIC? (Read 4284 times) previous topic - next topic

matchedFilter terminates too early on an EIC?

matchedFilter finds peaks in a EIC, with a max that is a parameter of the filter function. However, it looks like as soon as it hits one peak that fails the S/N threshold, it stops looking for more peaks in that EIC. This is in line 729 of xcmsRaw.R. Should it continue to look for other peaks, ignoring the current one? I've got a case where the highest one has low s/n, but there are other peaks in the EIC, at different RTs.

Thanks.

Re: matchedFilter terminates too early on an EIC?

Reply #1
Not sure what you mean here. It should pick up all the relevant peaks above the noise threshold.
Can you give an example ?