R 更改ggplot2中变量和类别的颜色
我想创建一个堆叠条形图,其中不仅变量有其唯一的颜色,而且还有类别R 更改ggplot2中变量和类别的颜色,r,plot,ggplot2,stacked,R,Plot,Ggplot2,Stacked,我想创建一个堆叠条形图,其中不仅变量有其唯一的颜色,而且还有类别 a = c("A","A","B","B","C","C","D","D") b = c("inclusion","exclusion","inclusion","exclusion","inclusion","exclusion","inclusion","exclusion") c = c(60,20,20,80,50,55,25,20) dat = data.frame(category=a, variable=b, val
a = c("A","A","B","B","C","C","D","D")
b = c("inclusion","exclusion","inclusion","exclusion","inclusion","exclusion","inclusion","exclusion")
c = c(60,20,20,80,50,55,25,20)
dat = data.frame(category=a, variable=b, value=c)
dat
category variable value
1 A inclusion 60
2 A exclusion 20
3 B inclusion 20
4 B exclusion 80
5 C inclusion 50
6 C exclusion 55
7 D inclusion 25
8 D exclusion 20
可以很容易地创建具有costum可变颜色的绘图:
colors <- c("#9ECAE1","#F03B20")
ggplot(dat, aes(category, value, fill = variable)) +
geom_bar()+
scale_fill_manual(values = colors)
colors好的,在这种情况下,您只需为每个唯一的组合创建一个变量(在这种情况下,每行一个,但将两个变量粘贴在一起更为一般;您也可以使用交互
):
dat$grp所以你的目标是一个有4条、8段的条形图,每段有不同的颜色(即8种独特的颜色)?16种不同的颜色(如果可能的话)-我没有说清楚:配对类别/变量会有一种。我今天早上一定没有喝足够的咖啡,因为看起来只有8种颜色。(4个类别x 2个变量=8个组合)你喝了足够的咖啡,但我没有(真实的故事,它是8种颜色(=行数)。我的不好。
dat$grp <- paste(dat$category,dat$variable)
ggplot(dat, aes(category, value, fill = grp)) +
geom_bar()+
scale_fill_manual(values = brewer.pal(8,"Reds"))