[BioC] XCMS for LC-MS

[Bashar Amer]

Dear Sir/Madam,
 
 I am a user of XCMS for analysing LC-MS data. I have 500 samples
 (chromatograms) and I am getting an error message when ever I start
 the analysis saying cant make a vector of some MB size.
 
 I got the message after applying this command, it Works for some
 samples but at some point it stops:

 xset <- xcmsSet(myDir, ppm = 25, peakwidth = c(20,50), method = "centWave", snthresh = 10, prefilter = c(3,100), mzCenterFun ="wMean", integrate = 1, mzdiff = -0.001, fitgauss = FALSE) 
 
 would you please help me and inform me how i woud be possible
 increasing the capacity,
 
 Kind Regards,
 Bashar Amer



Bashar Amer 

PhD Student, 
Department of Food Science, Aarhus University