Get a raw data matrix

Returns a matrix with columns for time, m/z, and intensity that represents the raw data from a chromatography mass spectrometry experiment.

Methods

object = "xcmsRaw"

rawMat(object, mzrange = numeric(), rtrange = numeric(), scanrange = numeric(), log=FALSE)

Arguments

object

The container of the raw data

mzrange

Subset by m/z range

rtrange

Subset by retention time range

scanrange

Subset by scan index range

log

Whether to log transform the intensities

Value

A numeric matrix with three columns: time, mz and intensity.

See also

plotRaw for plotting the raw intensities

Author

Michael Lawrence