NipponMap (version 0.2)

JapanPrefCartogram: A simple circle cartogram of Japan

Description

Draw a circle cartogram of Japan in the prefecture level

Usage

JapanPrefCartogram(col = NULL, axes = FALSE, xlab = "", ylab = "", xlim = NULL,
                               ylim = NULL, main = NULL, ...)

Arguments

col

A character vector. RGB or named colors in order of JISCODE to fill a polygon of 47 prefectures.

axes

logical. If TRUE, axes are drawn. The default value is FALSE.

xlab

A title for the x axis. The default value is NULL.

ylab

A title for the y axis. The default value is NULL.

xlim

The x-range to be displayed. The default value is NULL.

ylim

The y-range to be displayed. The default value is NULL.

main

An overall title for the plot

...

any other options passed to control circles.

Value

A data.frame. The coordinates of a label point in each prefecture.

Details

The function JapanPrefCartogram draws a simple circle cartogram of Japan in prefecture level. The size of circles represents population in 2015 in each prefecture. Currently, the size is fixed. Users can control only colors and some other graphic parameters. The order of colors must match to the JIS-code order of prefectures in Japan.

Population set was obtained from 2015 Population Census of Japan.

Examples

# NOT RUN {
JapanPrefCartogram()

op <- palette(rainbow(47, end = 0.9))
xy <- JapanPrefCartogram(col = 1:47, fg = gray(.8))
lb <- character(47)
lb[13] <- "Tokyo"
text(xy, lb)
palette(op)
# }