pairsCorr {GCDkit}R Documentation

Statistics: Correlation

Description

Plots a matrix of scatterplots in the lower panel and one of other pre-defined panel functions in the upper.

Usage

pairsCorr(elems=NULL,pch=NULL,col=NULL,upper.panel="panel.cor",...)

pairsMjr(pch=NULL,col=NULL,upper.panel="panel.cor",...)

pairsTrc(pch=NULL,col=NULL,upper.panel="panel.cor",...)

Arguments

elems

list of desired elements/oxides

pch

plotting symbols

col

colours

upper.panel

character; name of the function to be used for the upper plate

...

any further parameters to the function pairs

Details

The samples can be selected based on combination of three searching mechanisms (by sample name/label, range or a Boolean condition) - see selectSamples for details.

Even though a list of major elements is assumed as a default, different variables can be specified by the function 'selectColumnsLabels'.

In the specification of the variables can be used also arithmetic expressions, see calcCore for the correct syntax.

pairsCorr.png

The upper panels to choose from are:

Parameter Function Explanation
'panel.corr' cor Prints correlations, with size proportional to the correlations;
'panel.cov' cov Prints covariances;
'panel.smooth' lowess Fits smooth trendlines;
'panel.hist' hist Plots frequency histograms.

Value

Returns a variable 'results' with the outcome of the function used for the upper panel construction (cor for 'panel.corr' or cov for 'panel.cov').

Author(s)

Vojtěch Janoušek, vojtech.janousek@geology.cz

See Also

pairs cor cov lowess hist

Examples

    data(blatna)
    accessVar("blatna")
    
    pairsCorr(LILE)
    
    pairsCorr(LILE,pch="+",col="darkgreen",cex.labels=3,upper.panel="panel.smooth")

    pairsMjr(pch=15,col="red")

    pairsTrc(pch=15,col="red")

    # user-defined list
    my.elems<-c("Na2O/K2O","Rb","Sr","Ba")
    pairsCorr(my.elems,col="darkblue")

[Package GCDkit version 6.1 Index]