xcms (version 1.48.0)

AutoLockMass-methods: Automatic parameter for Lock mass fixing AutoLockMass ~~

Description

AutoLockMass - This function decides where the lock mass scans are in the xcmsRaw object. This is done by using the scan time differences.

Arguments

object

An xcmsRaw-class object

Value

AutoLockMass A numeric vector of scan locations corresponding to lock Mass scans

Methods

object = "xcmsRaw"

signature(object = "xcmsRaw")

Examples

	## Not run: library(xcms)
# 		library(faahKO) ## These files do not have this problem to correct for but just for an example
# 		cdfpath <- system.file("cdf", package = "faahKO")
# 		cdffiles <- list.files(cdfpath, recursive = TRUE, full.names = TRUE)
# 		xr<-xcmsRaw(cdffiles[1])
# 		xr
# 		##Lets assume that the lockmass starts at 1 and is every 100 scans
# 		lockMass<-xcms:::makeacqNum(xr, freq=100, start=1)
# 		## these are equalvent
# 		lockmass2<-AutoLockMass(xr)
# 		all((lockmass == lockmass2) == TRUE)
# 
# 		ob<-stitch(xr, lockMass)
# 	## End(Not run)