getEICS {yamss} | R Documentation |
Computes extracted ion chromatrograms (EICs) for the given M/Z ranges. Intensities are on the log2 scale.
getEICS(object, mzranges)
object |
An object of class |
mzranges |
A 2-column matrix where each row corresponds to one M/Z range and the first and second columns are the minimum and maximum M/Z values for the range respectively. |
In a given M/Z range, the maximum intensity observed in each scan gives the extracted ion chromatogram.
A list with length equal to the number of rows of mzranges
where each list element is a # scans by # samples matrix of EICs (on the
log2 scale).
data(cmsRawExample) mzranges <- rbind(c(500.01, 500.03), c(501.3, 501.5)) eicList <- getEICS(cmsRawExample, mzranges)