adehabitatLT (version 0.3.7)

plotltr: Changes in Traject Parameters Over Time

Description

This function allows a graphical examination of the changes in descriptive parameters in objects of class ltraj

Usage

plotltr(x, which = "dist", pch = 16, cex = 0.7, addlines = TRUE, ...)

Arguments

x

An object of class ltraj

which

a character string giving any syntactically correct R expression implying the descriptive elements in x or the variables in the optional attribute infolocs.

pch

the type of points on the plot (see help(par)).

cex

the size of points on the plot (see help(par)).

addlines

logical. Indicates whether lines should be added to the plot.

...

additional parameters to be passed to the generic function plot

See Also

ltraj for additional information about objects of class ltraj, and sliwinltr for a sliding window smoothing

Examples

data(puechcirc)

plotltr(puechcirc, "cos(rel.angle)")
plotltr(puechcirc, "dist")
plotltr(puechcirc, "dx")