【发布时间】：2010-02-24 22:35:10
【问题描述】：
我使用 gplots 创建了一个年龄-性别金字塔。我想在金字塔的两侧居中放置一个字幕。
但是，我只能让字幕与金字塔的两侧之一对齐：
library(gplots)
agetable <- as.data.frame(cbind (c(2, 4, 7, 8, 10, 8, 6, 4, 2, 1),
c(1, 3, 5, 9, 11, 6, 4, 1, 0, 1)))
names(agetable) <- c("Male", "Female")
maxdir <- max(agetable)
subtitle <- "34% of data are mising age or sex"
agegraph.general.bysex <- function(agetable, maxdir, varname, miss){
agegroups <-
if (varname=='Male') {
datavec <- agetable[,'Male']
lim = c(maxdir,0)
agelabels = c('0-9','10-19','20-29','30-39','40-49','50-59',
'60-69','70-79','80-89','90+')
} else {
datavec <- agetable[,'Female']
lim = c(0, maxdir)
agelabels = ''
}
barplot2(
datavec, horiz=TRUE, space=0, xlab = varname, xlim=lim, col='grey85',
axisnames=TRUE, cex.axis = 1, cex.names = 1, names.arg=agelabels,
plot.grid=TRUE, cex.sub = 0.8, sub = miss)
}
layout(matrix(1:2, ncol=2, nrow=1))
par(las=1, adj=0.5, omi=c(0.1, 0.1, 0.1 ,0.1), cex=0.8 , cex.lab=0.8)
par(mar=c(7,5,0,0))
agegraph.general.bysex(agetable, maxdir, 'Male', subtitle)
par(mar=c(7,0,0,5))
agegraph.general.bysex(agetable, maxdir, 'Female', '')
如果有任何建议，我将不胜感激！
【问题讨论】：