text.ternary: Ternary text plotting
In provenance: Statistical Toolbox for Sedimentary Provenance Analysis

text.ternary

R Documentation

Ternary text plotting

Description

Add text an existing ternary diagram

Usage

## S3 method for class 'ternary'
text(x, labels = 1:nrow(x$x), ...)

Arguments

`x`	an object of class `ternary`, or a three-column data frame or matrix
`labels`	a character vector or expression specifying the text to be written
`...`	optional arguments to the generic `text` function

Examples

data(Namib)
tern <- ternary(Namib$Major,'CaO','Na2O','K2O')
plot(tern,pch=21,bg='red',labels=NULL)
# add the geometric mean composition as a text label:
gmean <- ternary(exp(colMeans(log(tern$x))))
text(gmean,labels='geometric mean')

provenance documentation built on May 29, 2024, 4:23 a.m.