errbar: Scatter Plot with Error Bars

In sfsmisc: Utilities from 'Seminar fuer Statistik' ETH Zurich

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,
       ylim = range(y,yplus,yminus),
       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.
ylim	(numeric of length 2): the y-axis extents with a sensible default.
xlab, ylab	axis labels for the plot, as in plot.default.
...	Graphical parameters (see par) may also be supplied as arguments to this function.

Author(s)

Originally Charles Geyer, U.Chicago, early 1991; then Martin Mächler.

See Also

errbar in package Hmisc is similar.

Examples

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

sfsmisc documentation built on Aug. 10, 2023, 5:06 p.m.