> library(caret)载入需要的程辑包：latticeError in nchar(homeDir) : invalid multibyte string, element 1载入需要的程辑包：ggplot2Error in nchar(homeDir) : invalid multibyte string, element 1Error in nchar(homeDir) : invalid multibyte string, element 1> install.packages("lattice")Error in install.packages : Updating loaded packagesError in nchar(homeDir) : invalid multibyte string, element 1> install.packages(gglot2)Error in install.packages : object 'gglot2' not found> install.packages("gglot2")Warning in install.packages :
 package ‘gglot2’ is not available (for R version 3.3.1)Error in nchar(homeDir) : invalid multibyte string, element 1