plotDistr {RcmdrMisc} | R Documentation |
This function plots a probability density, mass, or distribution function, adapting the form of the plot as appropriate.
plotDistr(x, p, discrete=FALSE, cdf=FALSE, regions=NULL, col="gray", legend=TRUE, legend.pos="topright", ...)
x |
horizontal coordinates |
p |
vertical coordinates |
discrete |
is the random variable discrete? |
cdf |
is this a cumulative distribution (as opposed to mass) function? |
regions, col |
for continuous distributions only,
if non- |
legend |
plot a legend of the regions (default |
legend.pos |
position for the legend (see |
... |
arguments to be passed to |
Produces a plot; returns NULL
invisibly.
John Fox jfox@mcmaster.ca
x <- seq(-4, 4, length=100) plotDistr(x, dnorm(x), xlab="Z", ylab="p(z)", main="Standard Normal Density") plotDistr(x, dnorm(x), xlab="Z", ylab="p(z)", main="Standard Normal Density", region=list(c(1.96, Inf), c(-Inf, -1.96)), col=c("red", "blue")) plotDistr(x, dnorm(x), xlab="Z", ylab="p(z)", main="Standard Normal Density", region=list(c(qnorm(0), qnorm(.025)), c(qnorm(.975), qnorm(1)))) # same x <- 0:10 plotDistr(x, pbinom(x, 10, 0.5), xlab="successes", discrete=TRUE, cdf=TRUE, main="Binomial Distribution Function, p=0.5, n=10")