找不到ggplot2這個(gè)包，也安裝不了
> library(ggplot2) Error in library(ggplot2) : there is no package called ‘ggplot2’ Warning: unable to access index for repository https://cran.rstudio.com/src/contrib: ?cannot download all files 提示沒有這個(gè)包怎么辦？
東圍居士
2016-10-10
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2016-10-10
Rstudio==>Tools==>Install Pakages==>ggplot2==>install
2016-10-10
是我把雙引號給漏了
應(yīng)該是install.packages("ggplot2")