massifquant not working

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massifquant not working

February 27, 2012, 04:57:02 AM

Hi,

We wanted to try the massifquant peak detection on some of our samples; apparently the findPeaks.massifquant function is not found in the DLL (the R part of the function seems to exist, it seems to fail when calling the DLL...)

Code: [Select]

fn <- "my_long_filename"
# just to try:
xs <- xcmsSet(fn, method="centWave")
# works great. However:
xs <- xcmsSet(fn, method="massifquant", ppm=5)
100309_pos_micropoll_19: 
Fehler in .Call("massifquant", object@env$mz, object@env$intensity, object@scanindex,  : 
  C Symbolname "massifquant" nicht in der DLL für Paket "xcms"

Code: [Select]

sessionInfo()
R version 2.14.0 (2011-10-31)
Platform: i386-pc-mingw32/i386 (32-bit)

(tl;dr)

mzR_1.0.0
xcms_1.30.0

The same was true for R 2.14.1 and XCMS 1.30.3.

Is the function not yet active, or is something wrong with our R?
(R for Windows, btw.)

Re: massifquant not working

Reply #1 – February 27, 2012, 09:01:13 AM

Hi,

Quote from: "meow"

We wanted to try the massifquant peak detection on some of our samples; apparently the findPeaks.massifquant function is not found in the DLL (the R part of the function seems to exist, it seems to fail when calling the DLL...)

I just committed 1.31.8, which enables windows builds
of the (experimental) MassIfQuant Peak picker.

The only change I needed (apart from adding the massifquant *.o
to OBJECTS in Makevars.win) was to define float64 as double,
same as in the unix variant.

If you're impatient, grab' it from
http://msbi.ipb-halle.de/~sneumann/xcms_1.31.8.zip

Yours,
Steffen

Re: massifquant not working

Reply #2 – February 29, 2012, 08:01:22 AM

Hi,

thanks, it works now