adegraphics (version 1.0-3)

s.traject: 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)

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.

Details

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

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))
y1 <- unlist(lapply(1:5, rw))
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))
y2 <- unlist(lapply(1:2, rw))
z2 <- gl(2, 50)
g2 <- s.traject(data.frame(x2, y2), z2, ppoints.pch = 21:20, plines.col = 1:2)