MALDIquant: isMassObject-functions – R documentation

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isMassObject-functions

Tests for MassSpectrum or MassPeaks object.

Description

These functions test for a MassSpectrum or MassPeaks object.

Usage

isMassSpectrum(x)

isMassPeaks(x)

Arguments

`x`	object to be tested.

Value

Returns TRUE or FALSE depending on whether its argument is an MassSpectrum or MassPeaks object.

Author(s)

Sebastian Gibb mail@sebastiangibb.de

Examples

## load package
library("MALDIquant")

## create a MassPeaks object
peaks <- createMassPeaks(mass=1:100, intensity=1:100,
                         metaData=list(name="example 1"))

## test
isMassPeaks(peaks)      # returns TRUE
isMassSpectrum(peaks)   # returns FALSE
isMassPeaks(double())   # returns FALSE

MALDIquant

Quantitative Analysis of Mass Spectrometry Data

v1.19.3

GPL (>= 3)

Authors

Sebastian Gibb [aut, cre] (<https://orcid.org/0000-0001-7406-4443>), Korbinian Strimmer [ths] (<https://orcid.org/0000-0001-7917-2056>)

Initial release

2019-05-12