MALDIquant (version 1.7)

isMassObjectList: Tests a list of AbstractMassObject objects.

Description

These functions test a list whether containing AbstractMassObject objects.

Usage

isMassObjectList(x)
isMassSpectrumList(x)
isMassPeaksList(x)

Arguments

x

object to be tested.

Value

• Returns TRUE or FALSE depending on whether its argument is a list of AbstractMassObject objects.

References

See website: http://strimmerlab.org/software/maldiquant/

See Also

MassPeaks, MassSpectrum, AbstractMassObject

Examples

## load library
library("MALDIquant")

## create list
p <- list()

## test list
isMassPeaksList(p) # returns FALSE

## create two MassPeaks objects and add them to the list
p <- createMassPeaks(mass=1:100, intensity=1:100,
                     metaData=list(name="example 1"))
p <- createMassPeaks(mass=1:100, intensity=1:100,
                     metaData=list(name="example 2"))

## test list
isMassObjectList(p)   # returns TRUE
isMassPeaksList(p)    # returns TRUE
isMassSpectrumList(p) # returns FALSE