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erah (version 2.2.0)

Automated Spectral Deconvolution, Alignment, and Metabolite Identification in GC/MS-Based Untargeted Metabolomics

Description

Automated compound deconvolution, alignment across samples, and identification of metabolites by spectral library matching in Gas Chromatography - Mass spectrometry (GC-MS) untargeted metabolomics. Outputs a table with compound names, matching scores and the integrated area of the compound for each sample. Package implementation is described in Domingo-Almenara et al. (2016) .

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Version

Install

install.packages('erah')

Monthly Downloads

257

Version

2.2.0

License

GPL (>= 2)

Maintainer

Xavier Domingo-Almenara

Last Published

July 17th, 2025

Functions in erah (2.2.0)

importMSP

Import MSP files to R
plotProfile

Plotting chromatographic profile
findComp

Find a compound
plotAlign

Plotting chromatographic profile with and without alignment
export2MSP

Export spectra to MSP
expClasses

expClasses-method
newExp

New Experiment
metaData

metaData-method
setAlPar

Set Alignment Parameters
recMissComp

Missing compound recovery
show,MetaboSet-method

Show MetaboSet object
sampleInfo

Information of the samples
export2CEF

Export spectra to CEF
identifyComp

Identification of compounds
setDecPar

Set Software Parameters
mslib

MassBank Spectral Library
phenoData

phenoData-method
plotSpectra

Plotting Spectra
plotChr

Plotting sample chromatogram
showRTRICurve

Show RT-RI curve
compInfo

Information of a Compound
createInstrumentalTable

Create Instrumental Table
MetaboSet-class

Class "MetaboSet"
createdt

Creating Experiment Tables
dataList

Data list
alignList

Alignment list
alignComp

Alignment of compounds
eRah_DB-class

Class "eRah_DB"
deconvolveComp

Deconvolution of compounds in samples
createPhenoTable

Create Phenotype Table
computeRIerror

computeRIerror
RawDataParameters-class

Class "RawDataParameters"
importGMD

Import MSP files from GMD to R
idList

Identification list