rCharts包连接
http://ramnathv.github.io/rCharts/
原数据做出来是这样的，
hair_eye_male <- subset(as.data.frame(HairEyeColor), Sex == "Male")
nPlot(Freq ~ Hair, group = "Eye", data = hair_eye_male, type = "multiBarChart")




hair_eye_male <- subset(as.data.frame(HairEyeColor), Sex == "Male")
hair_eye_male$xx <- as.factor(rep(c("一","二","三","四"),4))
nPlot(Freq ~ xx, group = "Eye", data = hair_eye_male, type = "multiBarChart")


用中文以后显示错误，编码改为utf-8 也不行，请问是什么原因