profStep-methods {xcms} | R Documentation

## Get and set m/z step for generating profile data

### Description

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

    	## Not run:
    		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.

    ## End(Not run)

[Package xcms version 3.0.2 Index]