broman (version 0.70-4)

dotplot: Dot chart with a gray background

Description

Like the grayplot() function, but with one axis assumed to be categorical.

Usage

dotplot(group, y, jiggle = NULL, rotate = FALSE, ...)

Arguments

group

Categorical coordinates for the plot

y

Coordinates of points in the plot

jiggle

Vector of amounts to jiggle the points horizontally, or a character string ("fixed" or "random") indicating the jiggling method; see jiggle().

rotate

If TRUE, have group as y-axis; default (FALSE) has group on x-axis.

...

Optional graphics arguments

Value

None.

Details

Calls grayplot() with special choices of graphics parameters for the case of categorical x.

If group is a factor, the order of the groups is as in the levels. Otherwise, we take sort(unique(group)). So if you want to control the order of the levels, make group a factor with the levels in the desired order, for example group <- factor(group, levels=unique(group)).

See Also

grayplot()

Examples

# NOT RUN {
x <- rnorm(40, c(1,3))
g <- rep(c("A", "B"), 20)
dotplot(g, x)
dotplot(g, x, "random")
dotplot(g, x, runif(length(g), -0.25, 0.25))

# }