minimum fraction of samples necessary in the class to be absent/present
Value
An logical vector with the same length as nrow(groups(object)).
Methods
object = "xcmsSet"
absent(object, ...)
present(object, ...)
Details
Determine which peaks are absent / present in a sample class
The functions treat peaks that are only present because
of fillPeaks correctly, i.e. does not count them as present.