Man pages for enviGCMS
GC/LC-MS Data Analysis for Environmental Science

checkGoldenRulesCheck Chemical Formula against Fiehn Seven Golden Rules
cleanMGFClean an MGF file by keeping only formula-explainable peaks
c.mzrtc method for mzrt object
findlinefind line of the regression model for GC-MS
findlipidFind lipid class of metabolites base on referenced Kendrick...
findmetScreen metabolites by Mass Defect
findohcScreen organohalogen compounds
findpfcFind PFCs based on mass defect analysis
getalignAlign two peaks vectors by mass to charge ratio and/or...
getalign2Align mass to charge ratio and/or retention time to remove...
getcompareAlign multiple peaks list to one peak list
getcsvConvert an list object to csv file
getdoeGenerate the group level rsd and average intensity based on...
getdwtusDensity weighted intensity for one sample
getfilterFilter the data based on row and column index
getformulaGet chemical formula for mass to charge ratio using the...
getHRMFBatch High Resolution Mass Filtering for all compounds in an...
getimputationImpute the peaks list data
getintegrationgetintegration was mainly used for get the integration of...
getisotopologuesGet the selected isotopologues at certain MS data
getmassGet the exact mass of the isotopologues from a chemical...
getmassdefectGet mass defect with certain scaled factor
getmdhGet the high order unit based Mass Defect
getmdrGet the raw Mass Defect
getms1annoAnnotation of MS1 data by compounds database by predefined...
getMSPread in MSP file as list for ms/ms or ms(EI) annotation
getmzrtcsvCovert the peaks list csv file into list
getoverlappeakGet the overlap peaks by mass and retention time range
getpnMerge positive and negative mode data
getpowerGet the index with power restriction for certain study with...
getpqsiCompute pooled QC linear index according to run order
getrangecsvGet a mzrt list and/or save mz and rt range as csv file
getretcorPerform peaks list alignment and return features table
getrmdGet the Relative Mass Defect
gifmrplot scatter plot for rt-mz profile and output gif file for...
HRMFHigh Resolution Mass Filtering (HRMF) for GC/LC HRMS data
integrationJust integrate data according to fixed rt and fixed noise...
listDemo data
mafilter data by average moving box
matrixDemo raw data matrix
plotccPlot the calibration curve with error bar, r squared and...
plotdenplot the density for multiple samples
plotdwtusplot density weighted intensity for multiple samples
plotEICPlot extracted ion chromatograms from raw mzML/mzXML data
plotgroupPlot the response group of GC-MS
plothistPlot the density of the GC-MS data with EM algorithm to...
plothmPlot the heatmap of mzrt profiles
plotintplot the information of integration
plotintslopeplot the slope information of integration
plotkmsplot the kendrick mass defect diagram
plotmrplot the scatter plot for peaks list with threshold
plotmrcplot the diff scatter plot for peaks list with threshold...
plotmsplot GC/LC-MS data as a heatmap with TIC
plotmzplot GC/LC-MS data as scatter plot
plotpcaplot the PCA for multiple samples
plotpeakplot intensity of peaks across samples or samples across...
plotridgeplot ridgeline density plot
plotridgesRelative Log Abundance Ridge (RLAR) plots for samples or...
plotrlaRelative Log Abundance (RLA) plots
plotrsdplot the rsd influences of data in different groups
plotrugplot 1-d density for multiple samples
plotsmsPlot the intensity distribution of GC-MS
plotsubPlot the background of data
plottplot GC-MS data as a heatmap for constant speed of...
plotticPlot Total Ion Chromatogram (TIC)
plotTopMS1PeaksExtract top MS1 ions from MS2 EIC interactively
plotTopMS2PeaksExtract top MS2 ions from MS1 EIC interactively
rcpp_check_golden_rulesCheck Formula against Fiehn Seven Golden Rules
rcpp_decompose_massDecompose Mass into Candidate Chemical Formulas using the...
rcpp_decompose_massesDecompose a Vector of Masses in Parallel using the HORIZON...
rcpp_get_moleculeCalculate Exact Mass and Isotope Distribution using the...
rcpp_score_isotopesCalculate Isotopic Pattern Similarity Scores
runMDPlotShiny application for interactive mass defect plots analysis
runsccpShiny application for Short-Chain Chlorinated Paraffins...
sccpShort-Chain Chlorinated Paraffins(SCCPs) peaks information...
scoreIsotopesCalculate Isotopic Pattern Similarity Scores
TBBPADemo data for TBBPA metabolism in Pumpkin
writeMSPWrite MSP file for NIST search
enviGCMS documentation built on Oct. 10, 2026, 5:06 p.m.