R：绘制地图作为条形图中的插图

Question

示例数据：

dat1 <- data.frame(month = 1:12, rain = sample(100:200,12, replace = T), temp = sample(20:30, 12,, replace = T))


par(mfrow=c(1,2))

with(dat1, barplot(rain), ylim = c(0,500))
par(new = TRUE)
with(dat1, plot(temp, type = "b", lwd = 2, col = "red",axes = F, bty = "n", xlab = "", ylab = "", ylim = c(12,30)))
axis(side = 4, las = 2)

该图属于法国的一个地区，Id = 12

library(raster)
dat <- getData('GADM', country='FRA', level=1)
plot(dat, col = ifelse(dat$ID_1 == 12, "red","grey"))

我有什么方法可以把这两个数字合二为一，这样法国的地图就来了 作为插图？这与此处的问题相反，其中将条形图放在地图中 How to plot barchart onto ggplot2 map

我试过了：

 dat1 <- data.frame(month = 1:12, rain = sample(100:200,12, replace = T), temp = sample(20:30, 12,, replace = T))

 layout(matrix(c(1,1,2,1), nrow = 2, ncol = 2, byrow = TRUE))
 with(dat1, barplot(rain), ylim = c(0,500))
 par(new = TRUE)
 with(dat1, plot(temp, type = "b", lwd = 2, col = "red",axes = F, bty = "n", xlab = "", ylab = "", ylim = c(12,30)))
      axis(side = 4, las = 2)

 library(raster)
 dat <- getData('GADM', country='FRA', level=1)
 plot(dat, col = ifelse(dat$ID_1 == 12, "red","grey"))

但这与我的情节重叠。我怎样才能将它显示为顶部或顶部的小插图。

Answer 1

我看到两个选项。

1 /使用透明背景：

...
par(bg=NA)
plot(dat, col = ifelse(dat$ID_1 == 12, "red","grey"))

2 /增加布局矩阵：

dat1 <- data.frame(month = 1:12, rain = sample(100:200,12, replace = T), temp = sample(20:30, 12,, replace = T))
layout(matrix(c(2,1,1,1,1,1,1,1,1), nrow = 3, ncol = 3, byrow = TRUE))

with(dat1, barplot(rain), ylim = c(0,500))
par(new = TRUE)
with(dat1, plot(temp, type = "b", lwd = 2, col = "red",axes = F, bty = "n", xlab = "", ylab = "", ylim = c(12,30)))
  axis(side = 4, las = 2)

dat <- getData('GADM', country='FRA', level=1)
par(bg=NA)
plot(dat, col = ifelse(dat$ID_1 == 12, "red","grey"))