Scatter Plot with Error Bars
Draws a scatter plot, adding vertical “error bars” to all the points.
errbar(x, y, yplus, yminus, cap = 0.015,
ylim = range(y,yplus,yminus),
xlab= deparse(substitute(x)),
ylab= deparse(substitute(y)), ...)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
|
... |
Graphical parameters (see |
Originally Charles Geyer, U.Chicago, early 1991; then Martin Mächler.
y <- rnorm(10); d <- 1 + .1*rnorm(10) errbar(1:10, y, y + d, y - d, main="Error Bars example")
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