为了生成具有多个图的布局,我有以下代码和一些虚拟图:
jpeg("/path/to/file",height=10000,width=5000)
plot.new()
par(mar=c(2,2,1,1), oma=c(2,4,0,0), xpd=NA)
for (i in 1:10) {
par(mar=c(2,2,1,1),fig=c(0, 0.5, (10-i)/10, (11-i)/10), new=T)
matplot(rnorm(20)*sample(100,1),
col="blue",axes=F,type="l",lwd=10, xlab="",ylab="")
par(mar=c(2,2,1,1),fig=c(0.5, 1, (10-i)/10, (11-i)/10), new=T)
matplot(rnorm(20)*sample(100,1),
col="red",axes=F,type="l",lwd=10, xlab="",ylab="")
}
dev.off()
我想在跨越一列中所有 10 个图的远左轴和远右轴上添加一条垂直线/轴。由于我将使用这条线作为轴,因此我需要能够添加刻度线和标签。
最佳答案
您可以通过?axis
或?Axis
来绘制轴。要在多个绘图上跨越轴,您必须重置 usr 坐标。
请在下面找到基本图形解决方案:
## store number of rows
nRow <- 10
## your example code
## (only the number "10" is replaced by nRow and oma is adapted)
plot.new()
par(mar=c(2, 2, 1, 1), oma=c(2, 4, 0, 4), xpd=NA)
for (i in 1:nRow) {
par(mar=c(2, 2, 1, 1), fig=c(0, 0.5, (nRow-i)/nRow, ((nRow+1)-i)/nRow), new=TRUE)
matplot(rnorm(20)*sample(100, 1),
col="blue", axes=F, type="l", lwd=10, xlab="", ylab="")
par(mar=c(2, 2, 1, 1), fig=c(0.5, 1, (nRow-i)/nRow, ((nRow+1)-i)/nRow), new=TRUE)
matplot(rnorm(20)*sample(100, 1),
col="red", axes=F, type="l", lwd=10, xlab="", ylab="")
}
## define new user coordinates
usr <- c(0, 1, 0, 1) ## x1, x2, y1, y2
## calculate tick positons
## in general: (usr[3]+(diff(usr[3:4])/(nRow-1))*0:(nRow-1))
## but our usecase is much easier:
ticksAt <- 1/(nRow-1)*0:(nRow-1)
## choose left column and reset user plotting area (usr)
par(mar=c(2, 2, 1, 1), fig=c(0, 0.5, 0, 1), usr=usr, new=TRUE)
## draw axis; see ?Axis for details
Axis(side=2, at=ticksAt, labels=as.character(1:(nRow)), line=0.5)
## choose right column and reset user plotting area (usr, not needed because already done)
par(mar=c(2, 2, 1, 1), fig=c(0.5, 1, 0, 1), usr=usr, new=TRUE)
## draw axis; see ?Axis for details
Axis(side=4, at=ticksAt, labels=as.character((nRow+1):(2*nRow)), line=0.5)
关于r - 添加多图轴,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10867283/