[英]Plotting confidence intervals and connect means for grouped data
set.seed(42)
df <- data.frame(group=rep(c("a","b","c"),each=10),value=c(rnorm(10,mean=1,sd=0.1),rnorm(10,mean=1.5,sd=0.3),rnorm(10,mean=3,sd=0.2)))
library(ggplot2)
library(Hmisc)
p1 <- ggplot(df,aes(x=group,y=value))
p1 +
stat_summary(fun.data = "mean_cl_boot", colour = "red", geom = "errorbar") + #errorbar with bootstrapped 95 % confidence interval
stat_summary(fun.data = "mean_cl_normal", colour = "blue", geom = "errorbar") + #errorbar with normal 95 % confidence interval
stat_summary(fun.y = "mean", colour = "black", geom = "point") + #means
stat_summary(fun.y= "mean", colour="black", geom="line", aes(group = 1)) #lines connecting means
如果你真的想要连接群体意味着仔细考虑,因为这没有多大意义。
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