| triangle.plot {ade4} | R Documentation |
Graphs for a dataframe with 3 columns of positive or null values
triangle.plot is a scatterplot
triangle.biplot is a paired scatterplots
triangle.posipoint, triangle.param, add.position.triangle are utilitaries functions.
triangle.plot(ta, label = as.character(1:nrow(ta)), clabel = 0,
cpoint = 1, draw.line = TRUE, addaxes = FALSE, addmean = FALSE,
labeltriangle = TRUE, sub = "", csub = 0, possub = "topright",
show.position = TRUE, scale = TRUE, min3 = NULL, max3 = NULL,
box = FALSE)
triangle.biplot (ta1, ta2, label = as.character(1:nrow(ta1)),
draw.line = TRUE, show.position = TRUE, scale = TRUE)
ta, ta1, ta2, |
data frame with three columns, will be transformed in percentages by rows |
label |
a vector of strings of characters for the point labels |
clabel |
if not NULL, a character size for the labels, used with |
cpoint |
a character size for plotting the points, used with |
draw.line |
a logical value indicating whether the lines into the triangle should be drawn |
addaxes |
a logical value indicating whether the principal axes should be drawn |
addmean |
a logical value indicating whether the mean should be plotted |
labeltriangle |
a logical value indicating whether the variable names should be wrote |
sub |
a string of characters to be inserted as legend |
csub |
a character size for the legend, used with |
possub |
a string of characters indicating the sub-title position ("topleft", "topright", "bottomleft", "bottomright") |
show.position |
a logical value indicating whether the used triangle should be shown in the complete one |
scale |
a logical value indicating whether the smaller equilateral triangle containing the plot should be used |
min3 |
If scale is FALSE, a vector of three values for the minima e.g. c(0.1,0.1,0.1) can be used |
max3 |
If scale is FALSE a vector of three values for the maxima e.g. c(0.9,0.9,0.9) can be used |
box |
a logical value indicating whether a box around the current plot should be drawn |
triangle.plot returns an invisible matrix containing the coordinates used for the plot. The graph can be supplemented in various ways.
Daniel Chessel
data(euro123) tot <- rbind.data.frame(euro123$in78, euro123$in86, euro123$in97) row.names(tot) <- paste(row.names(euro123$in78), rep(c(1, 2, 3), rep(12, 3)), sep = "") triangle.plot(tot, label = row.names(tot), clab = 1) par(mfrow = c(2, 2)) triangle.plot(euro123$in78, clab = 0, cpoi = 2, addmean = TRUE, show = FALSE) triangle.plot(euro123$in86, label = row.names(euro123$in78), clab = 0.8) triangle.biplot(euro123$in78, euro123$in86) triangle.plot(rbind.data.frame(euro123$in78, euro123$in86), clab = 1, addaxes = TRUE, sub = "Principal axis", csub = 2, possub = "topright") triangle.plot(euro123[[1]], min3 = c(0, 0.2, 0.3), max3 = c(0.5, 0.7, 0.8), clab = 1, label = row.names(euro123[[1]]), addax = TRUE) triangle.plot(euro123[[2]], min3 = c(0, 0.2, 0.3), max3 = c(0.5, 0.7, 0.8), clab = 1, label = row.names(euro123[[1]]), addax = TRUE) triangle.plot(euro123[[3]], min3 = c(0, 0.2, 0.3), max3 = c(0.5, 0.7, 0.8), clab = 1, label = row.names(euro123[[1]]), addax = TRUE) triangle.plot(rbind.data.frame(euro123[[1]], euro123[[2]], euro123[[3]])) par(mfrow = c(1, 1)) wtriangleplot <- cbind.data.frame(a = runif(100), b = runif(100), c = runif(100, 4, 5)) wtriangleplot <- triangle.plot(wtriangleplot) points(wtriangleplot, col = "blue", cex = 2) wtriangleplot <- colMeans(wtriangleplot) points(wtriangleplot[1], wtriangleplot[2], pch = 20, cex = 3, col = "red") rm(wtriangleplot)