bubble3: Create a bubble plot.

Description

Bubble plot based on function vaguely based on bubble by Edzer Pebesma in gstat package. By default, positive values have closed bubbles and negative values have open bubbles.

Usage

bubble3(x, y, z, col = 1, cexZ1=5, maxsize = NULL, do.sqrt = TRUE,
legend=TRUE, legend.z="default", legend.yadj=1.1, main = "",
cex.main = 1, xlab = "", ylab = "", minnbubble = 8,
xlim = NULL, ylim = NULL, axis1 = TRUE, xlimextra = 1,
add = FALSE, las = 1, allopen = TRUE)

Arguments

Vector of x-values.

Vector of y-values.

Vector of bubble sizes.

col

Color for bubbles.

cexZ1

Character expansion (cex) value for a proportion of 1.0.

maxsize

Size of largest bubble. Prefered option is now an expansion factor for a bubble with z=1 (see cexZ1 above).

do.sqrt

Should size be based on the area? (Diameter proportional to sqrt(z)). Default=TRUE.

legend

Add a legend to the plot?

legend.z

If a legend is added, what z values will be shown. Default is c(-3,-2,-1,.1,1,2,3) for Pearson-like quantities and a smaller range for proportions that are all less than 1.

legend.yadj

If a legend is added, how much should the y-axis be expanded to make space for it.

main

Title of plot. Default="".

cex.main

Charecter expansion for title. Default=1.

xlab

X-axis label.

ylab

Y-axis label.

minnbubble

Minimum number of unique x values below which extra space is added to horizontal axis (to make plot look better). Default = 8.

xlim

Optional limits on x-range.

ylim

Optional limits on y-range.

axis1

Show the horizontal axis on plot? Option allows turning off for use in multi-figure plots.

xlimextra

Extra space (see minnbubble above). Default = 1.

add

Add bubbles to existing plot? Default=FALSE.

las

Style of axis labels (see ?par for more info).

allopen

Should all bubbles be open (instead of just negative values)?