我刚刚更新到R 2.11.1，并在安装ggplot2后尝试
library(ggplot2)
并得到
Loading required package: proto
Loading required package: grid Loading
required package: reshape Loading
required package: plyr Loading
required package: digest Error in
eval(expr, envir, enclos) : could not
find function "proto" In addition:
Warning message: In library(package,
lib.loc = lib.loc, character.only =
TRUE, logical.return = TRUE, :
there is no package called 'proto'
Error : unable to load R code in
package 'ggplot2' Error:
package/namespace load failed for
'ggplot2'
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最佳答案
install.packages('ggplot2', dep = TRUE)可以解决问题...安装proto包