23

I am trying to create a stacked bar plot, but I cannot position the legend so that it does not overlap any of the bars. I have tried adjusting the margins, setting xlim, using a separate legend statement and searching here, all without success. Indeed, the code for the example data set came from StackOverflow. I am using base R and prefer a base R solution. Thank you for any advice.

setwd('c:/users/mmiller21/simple R programs/')

jpeg(filename = "barplot.jpeg")

set.seed(1234)
x <- replicate(8, round(10 * rexp(2000, 10)))
y <- apply(x, 2, function(column) table(factor(column, levels = 0:9)))
colnames(y) <- paste('A', seq(1,ncol(y),1), sep='')
rownames(y) <- paste('R', seq(1,nrow(y),1), sep='')
y

#      A1  A2  A3  A4  A5  A6  A7  A8
# R1  769 800 790 806 792 787 834 801
# R2  779 733 793 757 786 744 731 776
# R3  284 297 278 272 263 301 280 275
# R4  112 106  91 124 106 103 104  96
# R5   33  38  37  26  36  37  30  36
# R6   11  18   7  11  10  20  11   9
# R7    8   8   3   2   3   3   9   5
# R8    4   0   1   2   4   4   0   2
# R9    0   0   0   0   0   1   1   0
# R10   0   0   0   0   0   0   0   0

par(mfrow=c(1, 1), mar=c(5, 5, 4, 2) + 0.1)
barplot(y, col = 1:nrow(y), ylab="My Variables", legend.text = TRUE, 
        args.legend = list(x = "topright", bty = "n"))

dev.off()

enter image description here

4

4 回答 4

18

这个怎么样:

library(RColorBrewer)

barplot(
    y,
    xlim=c(0, ncol(y) + 3),
    col=brewer.pal(nrow(y), "Paired"),
    ylab="My Variables",
    legend.text=TRUE,
    args.legend=list(
      x=ncol(y) + 3,
      y=max(colSums(y)),
      bty = "n"
    )
)

在此处输入图像描述

于 2013-09-08T21:44:16.180 回答
10

有边距

par(mfrow=c(1, 1), mar=c(5, 5, 4, 8))
barplot(y, col = 1:nrow(y), ylab="My Variables", legend.text = TRUE, 
        args.legend = list(x = "topright", bty = "n", inset=c(-0.15, 0)))
于 2013-09-08T21:59:40.963 回答
6

只是为了好玩,在这里ggplot2,没有重叠的传说。

set.seed(1234)
x <- replicate(8, round(10 * rexp(2000, 10)))
y <- apply(x, 2, function(column) table(factor(column, levels = 0:9)))
y <- as.data.frame(y)
colnames(y) <- paste('A', seq(1,ncol(y),1), sep='')
rownames(y) <- paste('R', seq(1,nrow(y),1), sep='')

library(ggplot2)
library(reshape)
y$ID <- rownames(y)
y.melt <- melt(y, id.var = 'ID')

y.melt <- within(y.melt, ID <- factor(ID, 
    c('R10','R9','R8','R7','R6','R5','R4','R3','R2','R1'), 
    ordered = TRUE))

ggplot(y.melt, aes(x = variable, y = value, fill = ID)) +
    geom_bar(stat = 'identity') +
    xlab("") +
    ylab("My variable") +
    theme(legend.title=element_blank())

条形图

于 2013-09-08T22:34:50.187 回答
-1

你应该xpd=TRUE添加par()

par(mfrow=.., mar=...,xpd=TRUE)
于 2015-01-12T14:52:31.087 回答