hist.ltraj {adehabitat} | R Documentation |
This function draws an histogram of any tranformation of the
descriptive parameters of a trajectory in objects of class
ltraj
.
## S3 method for class 'ltraj': hist(x, which = "dx/sqrt(dt)", ...)
x |
an object of class ltraj |
which |
a character string giving any syntactically correct R
expression implying the descriptive elements in x . |
... |
parameters to be passed to the generic function
hist . |
a list of objects of class "histogram"
Clement Calenge clement.calenge@oncfs.gouv.fr
hist
, ltraj
for additional
information on the descriptive parameters of the trajectory,
qqnorm.ltraj
for examination of distribution.
## Simulation of a Brownian Motion a <- simm.brown(c(1:300, seq(301,6000,by=20))) plot(a, addpoints = FALSE) ## dx/sqrt(dt) and dy/sqrt(dt) are normally distributed (see ## ?qqchi) hist(a, "dx/sqrt(dt)", freq = FALSE) lines(tutu <- seq(-5,5, length=50), dnorm(tutu), col="red") hist(a, "dy/sqrt(dt)", freq = FALSE) lines(tutu, dnorm(tutu), col="red") ## Look at the distribution of distances between ## successive relocations hist(a, "dist/sqrt(dt)", freq = FALSE) lines(tutu <- seq(0,5, length=50), dchi(tutu), col="red")