我有一个类似的数据框架,如下所示:

mapDF <- structure(list(var = c(11L, 3L, 4L, 15L, 19L, 17L, 1L), approvals = c(10.5233545765422,
67.9809421770218, 9.66394835013545, 2.93736399165075, 3.36787205222721,
4.0168261757783, 1.50969267664431)), .Names = c("var", "approvals"
), row.names = c(NA, -7L), class = "data.frame")

当我尝试使用上述数据框创建条形图时,使用:
gplot <- ggplot(mapDF, aes(x= mapDF[1], y= mapDF[2])) + geom_bar()

..我收到以下消息,其中没有出现在RStudio的“图”部分中,显示为:
Don't know how to automatically pick scale for object of type data.frame. Defaulting to continuous
Don't know how to automatically pick scale for object of type data.frame. Defaulting to continuous
Error: stat_bin requires the following missing aesthetics: x

谁能指出我的错误吗?

最佳答案

将@joran的评论添加到答案中:

ggplot(mapDF, aes(x=var, y=approvals)) + geom_bar(stat="identity")

关于r - 使用ggplot2的geom_bar()查询-R,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/12904850/

10-12 17:16