.claslist               List of available classification schemes
AFM                     AFM diagram (Irvine + Baragar 1971)
Agrawal                 Trace-element based discrimination plots for
                        (ultra-)basic rocks (Agrawal et al. 2008)
Ague                    Concentration ratio diagram (Ague 1994)
ArcMapSetup             Drawing Arc GIS shapefiles
Batchelor               Batchelor and Bowden (1985)
CIPW                    CIPW norm
Cabanis                 Cabanis + Lecolle (1989) La/10-Y/15-Nb/8
Cann                    Pearce and Cann (1973)
Catanorm                Niggli's Molecular Norm (Catanorm)
Cox                     TAS diagram (Cox et al. 1979)
Debon                   BA and PQ diagrams (Debon + Le Fort 1983)
DebonBMgNo              B vs. Mg number diagram (Debon + Le Fort 1988)
DebonBQF                BQF ternary diagram (Debon + Le Fort 1983)
DebonKNaB               K/(Na+K) vs. B diagram (Debon + Le Fort 1983)
DebonQB                 Q vs. B diagram (Debon + Le Fort 1983)
EarthChem               Import from EarthChem.org
Enrique                 or+ab - 2Q - 4an ternary diagram (Enrique 2018)
FeMiddlemost            Adjustment of Fe oxidation ratio (Middlemost
                        1989))
Frost                   Frost et al. (2001)
Frost_2008              Frost + Frost (2008)
Grebennikov             Grebennikov (2014) 5Fe2O3t - Na2O+K2O -
                        5(CaO+MgO)
HTMLTableMain           Exporting data or results to HTML tables
Harris                  Harris et al. (1986) Hf-Rb/30-Ta*3
Hastie                  Co-Th diagram (Hastie et al. 2007)
Hollocher               Hollocher et al. (2012) La/Yb vs. Nb/La or
                        Th/Nb
ID                      Sample identification
Identify points         Plot editing: Identification of plotted symbols
Jensen                  Jensen cation plot (1976)
Jung                    Al/Ti thermometer for granitic rocks (Jung +
                        Pfnder 2007)
LaRoche                 R1-R2 diagram (De la Roche et al. 1980)
LaRocheCalc             Calculation: De la Roche
LaYb                    YbN vs LaN/YbN (Martin 1986) TTG/adakite
LaurentSource           Laurent et al. (2014) granitoid sources
LuEuSr                  100Eu - 500Lu - Sr (Vermeesch 2006)
Maniar                  Maniar and Piccoli (1989)
Meschede                Meschede (1986) Zr/4-2Nb-Y
Mesonorm                Improved Mesonorm for granitoid rocks
Middlemost              Middlemost's diagram (1985)
Misc                    Miscellaneous geochemical indexes
Miyashiro               SiO2-FeOt/MgO diagram (Miyashiro 1974)
Mode                    Approximating the mode by least-squares method
Mullen                  Mullen (1983) 10MnO-TiO2-10P2O5
MullerKbinary           Muller et al. (1992) potassic igneous rocks
                        discrimination
NaAlK                   Na2O - Al2O3 - K2O (mol. %) diagram
NbNaSr                  Na/100 - 25Nb - Sr (Vermeesch 2006)
NbZrY                   Meschede (1986) Zr/4 - 2Nb - Y LDA/QDA)
Niggli                  Niggli's values
Norry                   Pearce and Norry (1979)
OConnor                 Classification diagram for siliceous igneous
                        rocks, based on Fsp composition (O'Connor 1965)
OhtaArai                Ohta + Arai (2007) FMW weathering index
Paulick                 Al2O3/SiO2 - MgO/SiO2 (Paulick et al. 2006)
Pearce1976              LDA1-LDA2 plot after Pearce (1976)
Pearce1982              Pearce (1982)
Pearce1996              Nb/Y - Zr/Ti diagram (Winchester + Floyd 1977,
                        modified by Pearce 1996)
PearceDestructive1      Ta/Yb - K2O/Yb (Pearce 1982)
PearceDestructive2      Ta/Yb - Th/Yb (Pearce 1982)
PearceDestructive3      Nb/Y - Ti/Y (Pearce 1982)
PearceEtAl              Pearce et al. (1977) MgO-FeOt-Al2O3
PearceGranite           Pearce et al. (1984)
PearceNbThYb            Pearce (2008) Nb/Yb-Th/Yb diagram
PearceNbTiYb            Pearce (2008) Nb/Yb-TiO2/Yb diagram
PeceTaylor              SiO2-K2O diagram (Peccerillo + Taylor 1976)
Plate                   Plotting plates of several diagrams
Plate editing           Editing the plate properties/all its plots
                        simultaneously
QANOR                   Q'-ANOR diagram (Streckeisen + Le Maitre 1979)
QAPF                    QAPF diagram (Streckeisen 1974, 1978)
REEpatternsExplorer     REE patterns explorer (Anenburg & Williams
                        2022)
Ross                    Ross + Bedard (2009) Zr/Y-Th/Yb
Saccani                 Nb[N]-Th[N] basalt discrimination diagram
                        (Saccani 2015)
Schandl                 Schandl and Gorton (2002)
Shand                   A/CNK-A/NK diagram (Shand 1943)
Shervais                Shervais (1982)
Sylvester               Sylvester (1989)
TAS                     IUGS recommended TAS (Le Bas et al. 1986)
TASMiddlemost           Middlemost's modification of TAS diagram
ThTaHf                  Wood (1980) Th - Hf/3 - Ta LDA/QDA)
TiSiSr                  Si/1000 - Ti/40 - Sr (Vermeesch 2006)
TiSmV                   50Sm - Ti/50 - V (Vermeesch 2006)
TiV                     Shervais (1982) Ti - V LDA/QDA)
TiVSc                   V - Ti/50 - 5Sc (Vermeesch 2006)
TiZrY                   Pearce and Cann (1973) Zr - Ti/100 - 3Y
                        LDA/QDA)
TiZrYSr                 LDA1-LDA2 plot after Butler and Woronow (1986)
Verma                   Major-element based discrimination plots for
                        (ultra-)basic rocks (Verma et al. 2006)
Villaseca               B-A plot (modified by Villaseca et al. 1998)
Wedge                   Wedge diagrams (Ague 1994)
Whalen                  A type granitoids (Whalen et al. 1987)
Whalen_failure1         Whalen and Hildebrand (2019) - modified Pearce
                        et al. (1984) plots
Whalen_failure2         Whalen and Hildebrand (2019) Ta + Yb vs.
                        trace-element ratio plots
Whalen_failure3         Whalen and Hildebrand (2019) - Nb + Y vs.
                        trace-element ratio plots
WinFloyd1               Nb/Y - Zr/TiO2 diagram (Winchester + Floyd
                        1977)
WinFloyd2               Zr/TiO2 - SiO2 (Winchester + Floyd 1977)
Wood                    Wood (1980)
ZrTi                    Pearce and Cann (1973) Zr - Ti LDA/QDA)
about                   About GCDkit
accessExport            Export to Access
accessVar               Accessing data in memory of R
addContours             Add contours
addResults              Appending results to data
addResultsIso           Append Sr-Nd isotopic data
ageEps                  Plot Sr or Nd growth lines
apSaturation            Apatite saturation
appendSingle            Append empty label or variable
assign1col              Uniform colours
assign1symb             Uniform symbols
assignColLab            Colours by label
assignColVar            Colours by a variable
assignSymbGroup         Symbols/colours by groups
assignSymbLab           Symbols by label
assignSymbLett          Symbols by label - initial letters
atacazo                 Whole-rock composition of lavas from the
                        Atacazo and Ninahuilca volcanoes, Ecuador
binary                  Binary plot
binaryBoxplot           Binary boxplot
blatna                  Whole-rock geochemical composition of the
                        Blatn suite, Central Bohemian Plutonic Complex
boxplotIso              Statistical plots of isotopic ratios/model ages
bpplot2                 Box-Percentile Plot
calc                    Calculate a new variable
calcAnomaly             Anomaly on a spiderplot
calcCore                Calculation of user-defined parameters
classify                Generic Classification Algorithm
clr.trans               Centered-log-ratio transformation
cluster                 Statistics: Hierarchical clustering
contourAll              Outlining the whole dataset in a binary plot
contourGroups           Outlining individual groups of samples in a
                        binary plot
coplotByGroup           Coplot by groups
coplotTri               Coplot for three variables
correlationCoefPlot     Statistics: Correlation coefficient patterns
crosstab                Cross table of labels
customScript            Add a new variable to a script
cutMy                   Groups by numerical variable
dbfExport               Export to DBF
deleteSingle            Delete label or variable
diagramWithCircles      A diagram with circles
editData                Edit numeric data
editLabFactor           Edit label as factor
editLabels              Edit labels
elemIso                 Binary plot of a WR geochemical parameter vs
                        isotopic ratio
epsEps                  Binary plot of initial Sr isotopic ratios vs.
                        initial epsilon Nd values
escort                  ESCORT (Expert System for Characterization Of
                        Rock Types) of _Pearce (1987)_
excelExport             Export to Excel
figAdd                  Plot editing: Add
figAddReservoirs        Plot editing: Add Reservoirs
figCol                  Plot editing: Colours
figEdit                 Plot editing: Changing titles and axis labels
figGbo                  Defining groups on Figaro-compatible plots
figLoad                 Loading a Figaro plot
figMulti                Figaro: Multiple plot by groups
figOverplot             Overplotting data onto pre-existing binary,
                        ternary or spider plots
figOverplotDiagram      Overplotting data onto classification or
                        geotectonic plots
figRedraw               Redrawing/refreshing a Figaro plot
figSave                 Saving a Figaro plot
figScale                Plot editing: Scaling text or plotting symbols
figUser                 Plot editing: User defined parameter
figZoom                 Plot editing: Zooming
filledContourFig        Filled contours plot
formula2vector          Counting individual atoms in a formula unit
gcdOptions              GCDkit options
graphicsOff             Close all graphic windows
groupsByCluster         Groups by cluster analysis
groupsByDiagram         Groups by diagram
groupsByLabel           Groups by label
hfAddResults            Append Hf in Zrn isotopic data
hfAgeEps                Plotting Hf growth lines
hfAgeHfHf2              Plotting Hf growth lines
hfHist                  Histogram of UPb ages or Hf isotopic
                        parameters
hfIso                   Hf isotopes in zircon
hfLegend                Display Hf legend
hfOptions               Editor of Hf isotopic parameters
hfSaveResults           Saving Hf in Zrn isotopic data
hfStats                 Statistical plots of UPb ages or Hf isotopic
                        parameters
hfViolinplot            Violin plots of Hf isotopic ratios/model ages
info                    Info on datafile
isochron                Rb-Sr and Sm-Nd isochrons
isocon                  Isocon plots (Grant 1986)
joinGroups              Merge groups
khantaishir_Hf          Hafnium isotopic dataset from the Khantaishir
                        Magmatic Complex (Mongolia)
lambda.tetrad.fit       Shape components for REE patterns (Anenburg &
                        Williams 2022)
loadData                Loading data into GCDkit
mergeData               Appending data to a current data set
millications            Millications
minComp                 Computing chemical compositions from mineral
                        formulae
molecularWeight         Calculating molecular weights of oxides
multiple                Multiple binary plots
mzSaturation            Monazite saturation (Montel 1993)
overplotDataset         Adding another dataset to the current plot
oxide2oxide             Recalculation of one oxide to a different one
oxide2ppm               Calculation of ppm of atom from wt% of an oxide
pairsCorr               Statistics: Correlation
pdfAll                  Save all graphics to PDF
peekDataset             Retrieving previous dataset stored in memory
peterplot               Anomaly plot
phasePropPlot           Stacked barplot of temperature vs. phase
                        proportions.
plateAddReservoirs      Plate editing: plateAddReservoirs
plateLabelSlots         Annotate individual slots by letters or Roman
                        numerals
plotPlate               Plot Plate of Diagrams
plotWithCircles         xyz plotWithCircles
pokeDataset             Storing a dataset into memory for later use
ppm2oxide               Calculation of wt% of the given oxide from ppm
                        of atom
prComp                  Statistics: Principal components
printSamples            Display samples
printSingle             Display a variable
profiler                Profile plotting
projbioplot             Calculates ternary coordinates projected from
                        biotite (and plots the ternary diagram).
psAll                   Save all graphics to PS
purgeDatasets           Removing stored datasets from the memory
quitGCDkit              Exit GCDkit
r2clipboard             Copy results to clipboard
recast                  Recast to given sum
reciprocalIso           Binary plots of reciprocal element
                        concentration vs initial isotopic composition
regular expressions     Implementation of regular expressions in GCDkit
rtSaturation            Rutile saturation (Hayden + Watson 2007)
sampleDataset           Sample datasets
saveData                Save data file
saveResults             Save results
saveResultsIso          Save Sr-Nd isotopic data
sazava                  Whole-rock composition of the Sazava suite,
                        Central Bohemian Plutonic Complex
scattersmooth           scattersmooth
selectAll               Select whole dataset
selectByDiagram         Selecting subset by diagram
selectByLabel           Select subset by sample name or label
selectColumnLabel       Selecting a single variable in GCDkit
selectColumnsLabels     Selecting several data columns
selectNorm              Selecting the normalization data for
                        spiderplots
selectPalette           selectPalette
selectSubset            Select subset
setCex                  Set uniform symbols size
setShutUp               Quiet mode?
setTransparency         Setting transparency of plotting colours
showColours             Show available colours
showLegend              Display legend
showSymbols             Show available symbols
spider                  Spider plot(s): Selected samples
spider2norm             Spider plot(s): Selected samples, double
                        normalized
spiderBoxplot           Spider plot(s): Selected samples - summary
                        boxplot
spiderByGroupFields     Spider plot(s) - by group fields
spiderByGroupPatterns   Spider plot(s) - by group patterns
srnd                    Recalculations of the Sr-Nd isotopic data
srndOptions             Editor of Sr-Nd isotopic parameters
statsByGroup            Statistics by groups
statsByGroupPlot        Statistics: Plot summary by element and group
strip                   Statistics: Stripplot by groups
stripBoxplot            Statistics: Stripplot by groups - with boxplots
subsetBoolean           Select subset by Boolean condition
subsetRange             Select subset by range
summaryAll              Statistics: Statistical summaries for the whole
                        data set or its subset
summaryByGroup          Statistics: Statistical summaries by groups
summarySingle           Statistics: Single variable all/selection
summarySingleByGroup    Statistics: Single variable by groups
tatric_Hf               Hafnium isotopic dataset for the detrital
                        zircons from the Tatric Unit (Slovakia)
ternary                 Ternary plot
tetrad                  Lanthanide tetrad effect
tetradAnenburg          Shape components for REE patterns (Anenburg &
                        Williams 2022)
threeD                  3D plot
tkSelectVariable        TclTk GUI: Select a single variable
tk_winDialog            tk_winDialog
tk_winDialogString      tk_winDialogString
trendTicks              Petrogenetic trends
zrSaturation            Zircon saturation (Watson + Harrison 1983,
                        Boehnke et al. 2013)
zrSaturation.Borisov    Zircon saturation (Borisov et al. 2025)
zrSaturation.Crisp      Zircon saturation (Crisp et al. 2022)
zrSaturation.Gervasoni
                        Zircon saturation (Gervasoni et al. 2016)
