triangle.class {ade4} | R Documentation

## Triangular Representation and Groups of points

### Description

Function to plot triangular data (i.e. dataframe with 3 columns of positive or null values) and a partition

### Usage

    triangle.class(ta, fac, col = rep(1, length(levels(fac))),
        wt = rep(1, length(fac)), cstar = 1, cellipse = 0, axesell = TRUE,
        label = levels(fac), clabel = 1, cpoint = 1, pch = 20, draw.line = TRUE,
        addaxes = FALSE, addmean = FALSE, labeltriangle = TRUE, sub = "", csub = 1,
        possub = "bottomright", show.position = TRUE, scale = TRUE, min3 = NULL,
        max3 = NULL)

### Arguments

`ta` | a data frame with 3 columns of null or positive numbers
`fac` | a factor of length the row number of `ta`
`col` | a vector of color for showing the groups
`wt` | a vector of row weighting for the computation of the gravity centers by class
`cstar` | a character size for plotting the stars between 0 (no stars) and 1 (complete star) for a line linking a point to the gravity center of its belonging class.
`cellipse` | a positive coefficient for the inertia ellipse size
`axesell` | a logical value indicating whether the ellipse axes should be drawn
`label` | a vector of strings of characters for the labels of gravity centers
`clabel` | if not NULL, a character size for the labels, used with `par("cex")*clabel`
`cpoint` | a character size for plotting the points, used with `par("cex")*cpoint`. If zero, no points are drawn
`pch` | if `cpoint` > 0, an integer specifying the symbol or the single character to be used in plotting points
`draw.line` | a logical value indicating whether the triangular lines should be drawn
`addaxes` | a logical value indicating whether the axes should be plotted
`addmean` | a logical value indicating whether the mean point should be plotted
`labeltriangle` | a logical value indicating whether the varliable labels of `ta` should be drawn on the triangular sides
`sub` | a string of characters for the graph title
`csub` | a character size for plotting the graph title
`possub` | a string of characters indicating the sub-title position ("topleft", "topright", "bottomleft", "bottomright")
`show.position` | a logical value indicating whether the sub-triangle containing the data should be put back in the total triangle
`scale` | a logical value for the graph representation : the total triangle (FALSE) or the sub-triangle (TRUE)
`min3` | if not NULL, a vector with 3 numbers between 0 and 1
`max3` | if not NULL, a vector with 3 numbers between 0 and 1. Let notice that `min3`+`max3` must equal c(1,1,1)

### Author(s)

Daniel Chessel

### Examples

    if(!adegraphicsLoaded()) {
      data(euro123)
      par(mfrow = c(2, 2))
      x <- rbind.data.frame(euro123$in78, euro123$in86, euro123$in97)
      triangle.plot(x)
      triangle.class(x, as.factor(rep("G", 36)), csta = 0.5, cell = 1)
      triangle.class(x, euro123$plan$an)
      triangle.class(x, euro123$plan$pays)
      triangle.class(x, euro123$plan$an, cell = 1, axesell = TRUE)
      triangle.class(x, euro123$plan$an, cell = 0, csta = 0,
        col = c("red", "green", "blue"), axesell = TRUE, clab = 2, cpoi = 2)
      triangle.class(x, euro123$plan$an, cell = 2, csta = 0.5,
        axesell = TRUE, clab = 1.5)
      triangle.class(x, euro123$plan$an, cell = 0, csta = 1, scale = FALSE,
        draw.line = FALSE, show.posi = FALSE)
      par(mfrow = c(2, 2))
    }

[Package ade4 version 1.7-13 Index]