peakFind {TargetSearch} | R Documentation |
This function returns a list of the intensities and RI matrices that were searched.
peakFind(samples, Lib, cor_RI, columns = c("SPECTRUM", "RETENTION_TIME_INDEX", "RETENTION_TIME"), showProgressBar = FALSE)
samples |
A |
Lib |
A |
cor_RI |
A matrix of correlating selective masses RI for every sample.
See |
columns |
A numeric vector with the positions of the columns |
showProgressBar |
Logical. Should the progress bar be displayed? |
A tsMSdata
object.
Alvaro Cuadros-Inostroza, Matthew Hannah, Henning Redestig
ImportSamples
, ImportLibrary
, medianRILib
,
sampleRI
, tsMSdata
, tsLib
,
tsSample
require(TargetSearchData) data(TSExample) # get RI file path RI.path <- file.path(find.package("TargetSearchData"), "gc-ms-data") refLibrary <- ImportLibrary(file.path(RI.path,"library.txt")) # update RI file path RIpath(sampleDescription) <- RI.path peakData <- peakFind(sampleDescription, refLibrary, corRI) # show peak Intensities. head(Intensity(peakData), 2) # How to get intensities for a particular metabolite # just select the identifier. Here extract the intensities # for the first metabolite in the library IntMatrix <- Intensity(peakData)[[1]]