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XCMS / Select specific samples from correspondance file
I wonder how to select specific samples after correspondance? For example remove all quality control samples?
# Example code from https://bioconductor.org/packages/devel/bioc/vignettes/xcms/inst/doc/xcms.html
## Perform the correspondence
pdp <- PeakDensityParam(sampleGroups = sampleData(xdata)$sample_group,
minFraction = 0.4, bw = 30)
xdata <- groupChromPeaks(xdata, param = pdp)
With filterFeatureDefinitions its possible to filter features, but how to do it for samples?
Many thanks!
Best,
Elise