无论是RGui 还是Rstudio，试着打开CFPS2010年的数据的时候都会提示错误。。。
问题应该不是出在数据大小上面。。。但是我又看不出是不是里面的变量出了问题
代码如下：
> library(foreign)
> cfps<-read.dta("h:/files/rawfiles/cfps2010adult_report_nat092014.dta")
Error in factor(rval[[v]], levels = tt[[ll[v]]], labels = names(tt[[ll[v]]])) :
  invalid 'labels'; length 543 should be 1 or 542
此外: There were 50 or more warnings (use warnings() to see the first 50)

> warnings()
警告信息：
1: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste0(labels,  ... :
  duplicated levels in factors are deprecated
2: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste0(labels,  ... :
  duplicated levels in factors are deprecated
3: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste0(labels,  ... :
  duplicated levels in factors are deprecated

warnings的结果也都是一样...