sfsmisc (version 0.9-4)

errbar: Scatter Plot with Error Bars

Description

Draws a scatter plot, adding vertical ``error bars'' to all the points.

Usage

errbar(x, y, yplus, yminus, cap = 0.015,
       xlab= deparse(substitute(x)),
       ylab= deparse(substitute(y)), ...)

Arguments

x

vector of x values.

y

vector of y values.

yplus

vector of y values: the tops of the error bars.

yminus

vector of y values: the bottoms of the error bars.

cap

the width of the little lines at the tops and bottoms of the error bars in units of the width of the plot. Default is 0.015.

xlab, ylab

axis labels for the plot, as in plot.default.

...

Graphical parameters (see par) may also be supplied as arguments to this function.

Examples

y <- rnorm(10); d <- 1 + .1*rnorm(10)
errbar(1:10, y, y + d, y - d, main="Error Bars example")