> data2<-read.dta(file.choose())错误于read.dta(file.choose()) :   unable to open file: 'No such file or directory'> data1<-read.spss(file.choose())错误于read.spss(file.choose()) :   unable to open file: 'No such file or directory'
> data4<-read.csv(file.choose())错误于make.names(col.names, unique = TRUE) : 多字节字符串1有错
此外: 警告信息：
In read.table(file = file, header = header, sep = sep, quote = quote,  :
  readTableHeader在读取'F:\Engel curves\鏁版嵁1995_2002_2007\_0327_11_.xls'时遇到了不完全的最后一行
我换了几种格式都没法导入数据，怎么办，求指点。