类似热图的绘图,但对于分类变量 [英] heatmap-like plot, but for categorical variables
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问题描述
谢谢。
解决方案
easig用ggplot2来解决这个问题(无论如何):
#recreate a data set
dat < - data .frame(person = factor(paste0(id#,1:50),
levels = rev(paste0(id#,1:50))),matrix(sample(LETTERS [1:3 ],150,T),ncol = 3))
library(ggplot2); library(reshape2)
dat3< - melt(dat,id.var ='person')
ggplot(dat3,aes(variable,person))+ geom_tile(aes(fill = value),
color =white)+ scale_fill_manual(values = c(red,blue,black))
I have three factors (set1, set2, and set3) for each of about 50 individuals. The values for set1, set2, and set3 are "A","B","C". I'd like to make a heatmap-like plot of these data but have the legend show the color associated with the values (eg., A='red', B='blue', C='black'). Any suggestions?
Thanks.
解决方案
I decided it would be easist to approach this with ggplot2 (for me anyway):
#recreate a data set
dat <- data.frame(person=factor(paste0("id#", 1:50),
levels =rev(paste0("id#", 1:50))), matrix(sample(LETTERS[1:3], 150, T), ncol = 3))
library(ggplot2); library(reshape2)
dat3 <- melt(dat, id.var = 'person')
ggplot(dat3, aes(variable, person)) + geom_tile(aes(fill = value),
colour = "white") + scale_fill_manual(values=c("red", "blue", "black"))
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