s.traject: 2-D scatter plot with trajectories

In sdray/adegraphics: An S4 Lattice-Based Package for the Representation of Multivariate Data

2-D scatter plot with trajectories

Description

This function represents a two dimensional scatter plot with trajectories.

Usage

s.traject(dfxy, fac = gl(1, nrow(dfxy)), order, labels = levels(fac), 
  xax = 1, yax = 2, col = NULL, facets = NULL, plot = TRUE, 
  storeData = TRUE, add = FALSE, pos = -1, ...)

Arguments

dfxy	a data frame used to produce the plot
fac	a factor (or a matrix of factors) splitting the rows of dfxy
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
xax	an integer (or a vector) indicating which column(s) of dfxy is(are) plotted on the x-axis
yax	an integer (or a vector) indicating which column(s) of dfxy is(are) plotted on the y-axis
col	a color or a colors vector to color points, labels and lines
facets	a factor splitting the rows of dfxy 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 should be 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)

Details

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

Value

An object of class ADEg (subclass S2.traject) or ADEgS (if add is TRUE and/or if facets or multidimensional fac or vectors for xax/yax are used).
The result is displayed if plot is TRUE.

Author(s)

Alice Julien-Laferriere, Aurelie Siberchicot [e-mail] and Stephane Dray

See Also

S2.traject ADEg.S2

Examples

rw <- function(a) {
  x <- 0
  for(i in 1:49) x <- c(x, x[length(x)] + runif(1, -1, 1))
  x
}
x1 <- unlist(lapply(1:5, rw), use.names = FALSE)
y1 <- unlist(lapply(1:5, rw), use.names = FALSE)
z1 <- gl(5, 50)
g1 <- s.traject(data.frame(x1, y1), z1, ppoints.pch = 19:23, plines.col = rainbow(5))

x2 <- unlist(lapply(1:2, rw), use.names = FALSE)
y2 <- unlist(lapply(1:2, rw), use.names = FALSE)
z2 <- gl(2, 50)
g2 <- s.traject(data.frame(x2, y2), z2, ppoints.pch = 21:20, plines.col = 1:2)

sdray/adegraphics documentation built on March 29, 2024, 11:50 p.m.