DAAG (version 1.25.6)

powerplot: Plot of Power Functions

Description

This function plots powers of a variable on the interval [0,10].

Usage

powerplot(expr="x^2", xlab="x", ylab="y", ...)

Value

A plot of the given expression on the interval [0,10].

Arguments

expr

Functional form to be plotted

xlab

x-axis label

ylab

y-axis label

...

Further arguments, to be passed to plot()

Author

J.H. Maindonald

Details

Other expressions such as "sin(x)" and "cos(x)", etc. could also be plotted with this function, but results are not guaranteed.

Examples

   oldpar <- par(mfrow = c(2, 3), mar = par()$mar - c(
        1, 1, 1.0, 1),  mgp = c(1.5, 0.5, 0),  oma=c(0,1,0,1))
#    on.exit(par(oldpar))
    powerplot(expr="sqrt(x)", xlab="")
    powerplot(expr="x^0.25", xlab="", ylab="")
    powerplot(expr="log(x)", xlab="", ylab="")
    powerplot(expr="x^2")
    powerplot(expr="x^4", ylab="")
    powerplot(expr="exp(x)", ylab="")
par(oldpar)