subtract,purityD-method | R Documentation |
Uses a purityD object with references to multiple MS files. Subtract blank peaks from the sample peaks see subtractMZ for more information
## S4 method for signature 'purityD' subtract( Object, byClass = TRUE, mapping = c("sample", "blank"), ppm = 5, s2bthres = 10 )
Object |
object; purityD object |
byClass |
boolean; subtract within each class |
mapping |
parameter not functional (TODO) |
ppm |
numeric = ppm tolerance |
s2bthres |
numeric = threshold for the samp2blank (i1/i2) |
purityD object with averaged spectra
subtractMZ
datapth <- system.file("extdata", "dims", "mzML", package="msPurityData") inDF <- Getfiles(datapth, pattern=".mzML", check = FALSE, cStrt = FALSE) ppDIMS <- purityD(inDF, cores=1) ppDIMS <- averageSpectra(ppDIMS) ppDIMS <- filterp(ppDIMS, thr = 5000) ppDIMS <- subtract(ppDIMS)
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