【发布时间】:2016-03-20 20:59:20
【问题描述】:
使用this example from plotly 我正在尝试绘制两条垂直线来表示平均值和中位数。
可重现的代码
library(plotly)
# data
df1 <- data.frame(cond = factor( rep(c("A","B"), each=200) ),
rating = c(rnorm(200),rnorm(200, mean=.8)))
df2 <- data.frame(x=c(.5,1),cond=factor(c("A","B")))
# graph
ggplot(data=df1, aes(x=rating, fill=cond)) +
geom_vline(aes(xintercept=mean(rating, na.rm=T))
, color="red", linetype="dashed", size=1, name="average") +
geom_vline(aes(xintercept=median(rating, na.rm=T))
, color="blue", linetype="dashed", size=1, name="median") +
geom_histogram(binwidth=.5, position="dodge")
ggplotly()
问题
我想抑制显示在红色文本“平均值”旁边的 y 值 -2.2。但是,我希望像下面的屏幕截图中那样显示文本“平均”。 IE。我只想压制我打过黑叉的标签。 同样的问题也适用于中线。
我的非工作尝试
#plot
gg <- ggplot(data=df1, aes(x=rating, fill=cond)) +
geom_vline(aes(xintercept=mean(rating, na.rm=T))
, color="red", linetype="dashed", size=1, name="average")+
geom_vline(aes(xintercept=median(rating, na.rm=T))
, color="blue", linetype="dashed", size=1, name="median") +
geom_histogram(binwidth=.5, position="dodge")
p <- plotly_build(gg)
# p$data[[1]]$y[1:2] <- " " # another attempt, but the line doesn't display at all
p$data[[1]]$y <- NULL # delete the y-values assigned to the average line
plotly_build(p)
此尝试仍然显示0(下面的屏幕截图):
【问题讨论】: