adegraphics (version 1.0-21)

triangle.traject: Ternary plot with trajectories

Description

This function represents a three dimensional scatter plot with trajectories.

Usage

triangle.traject(dfxyz, fac = gl(1, nrow(dfxyz)), order, labels = levels(fac), 
  col = NULL, adjust = TRUE, min3d = NULL, max3d = NULL, showposition = TRUE, 
  facets = NULL, plot = TRUE, storeData = TRUE, add = FALSE, pos = -1, ...)

Value

An object of class ADEg (subclass Tr.traject) or ADEgS (if showposition is TRUE, if add is TRUE and/or if facets are used).

The result is displayed if plot is TRUE.

Arguments

dfxyz

a three columns data frame, the first system of coordinates, used to produce the plot

fac

a factor (or a matrix of factors) splitting the rows of dfxyz

order

a vector containing the drawing order of the trajectories. A vector of length equal to factor.

labels

a vector of character strings containing the trajectories' labels

col

a color or a colors vector to color points, labels and lines

adjust

a logical to adjust the device with the limits of the smaller equilateral triangle containing the values

min3d

a vector of three values for triangular minimal limits

max3d

a vector of three values for triangular maximal limits

showposition

a logical indicating whether the used triangle should be shown in the complete one

facets

a factor splitting the rows of dfxyz so that subsets of the data are represented on different sub-graphics

plot

a logical indicating if the graphics is displayed

storeData

a logical indicating if the data are stored in the returned object. If FALSE, only the names of the data arguments are stored

add

a logical. If TRUE, the graphic is superposed to the graphics already plotted in the current device

pos

an integer indicating the position of the environment where the data are stored, relative to the environment where the function is called. Useful only if storeData is FALSE

...

additional graphical parameters (see adegpar and trellis.par.get)

Author

Alice Julien-Laferriere, Aurelie Siberchicot and Stephane Dray

Details

The fac factor is used to display several trajectories: each level of fac is a specific trajectory.

See Also

Tr.traject ADEg.Tr

Examples

exo1 <- matrix(c(51.88, 32.55, 15.57, 44.94, 34.59, 20.47, 25.95, 39.15, 34.9,
  37.87, 43.19, 18.94, 34.2, 43.32, 22.48, 16.13, 42.18, 41.69,
  7.76, 70.93, 21.31, 6.22, 65.96, 27.82, 6.44, 57.06, 36.5,
  37.24, 32.45, 30.31, 16.09, 31.22, 52.69, 6.54, 24.68, 68.78), ncol = 3, byr = TRUE)
exo1 <- as.data.frame(exo1)
names(exo1) <- c("agr", "ouv", "ter")
com <- as.factor(rep(c("Gig", "Lun", "Gan", "Mat"), c(3, 3, 3, 3)))
rec <- as.factor(rep(c("68", "75", "82"), 4))
row.names(exo1) <- paste(com, rec, sep = "")
tri1 <- triangle.traject(exo1, fac = com, showposition=FALSE, pgrid.draw = FALSE, 
  col = TRUE, axis.text = list(cex = 0))