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Get and set m/z step for generating profile data

profStep-methods.Rd

These methods get and set the m/z step for generating profile (matrix) data from raw mass spectral data. Smaller steps yield more precision at the cost of greater memory usage.

Methods

object = "xcmsRaw"

profStep(object)

See also

xcmsRaw-class, profMethod

Examples

  if (FALSE) { # \dontrun{
    library(faahKO)
    cdfpath <- system.file("cdf", package = "faahKO")
    cdffiles <- list.files(cdfpath, recursive = TRUE, full.names = TRUE)
    xset <- xcmsRaw(cdffiles[1])

    xset
    plotSurf(xset, mass=c(200,500))

    profStep(xset)<-0.1 ## decrease the bin size to get better resolution
    plotSurf(xset, mass=c(200, 500))
    ##works nicer on high resolution data.
  } # }