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Messages - Ralf

272
metaXCMS / Welcome to the metaXCMS user forum!
If you report bugs, please include as many details as possible:

  • the R and metaXCMS version you are using
  • the steps to reproduce the problem
  • a screenshot if necessary
Ralf.
273
XCMS / Welcome to the XCMS user forum - please read before posting!
If you report bugs, please include as many details as possible:

  • the R and XCMS version you are using, i.e. the output of
    sessionInfo()
  • the steps to reproduce the problem
  • if an R function errors out, the exact place of the error can be shown by typing
    traceback()

Ten Simple Rules for Getting Help from Online Scientific Communities

Please use the search function to browse this forum for possible answers to your question.

In addition to that, an archive of the obsolete xcms mailing list is available.

Ralf.
274
XCMS Online / Re: feature group
Thank you for reporting the problem, it seems that there is something going wrong with the feature grouping for that dataset.
I'll look into it.

XCMS-Online uses the CAMERA package for feature annotations.
The number in square brackets in the column are used to indicate features, that 'belong together'.
e.g.  [14][M]1+ would be the 12C peak,  [14][M+1]1+ the 13C peak, singly charged.
[14] itself doesn't mean anything, it is just a consecutive number for this group of isotopic peaks from the same metabolite.

Also see the CAMERA user manual  http://http://bioconductor.org/packages/2.9/bioc/vignettes/CAMERA/inst/doc/CAMERA.pdf
275
XCMS Online / Re: error
Hi Koen,

It was a problem related to special characters (slash) in data set names.
Your job went through now.
We'll add an additional check to prevent these special characters in data set names.

Ralf.
276
XCMS Online / Re: error
Hi Koen,

thank you for the feedback. However, it seems like the job was deleted already.
If you can reproduce the problem, please don't delete the job,
so I can try to find the reason for the problem.

Ralf.