read.table 或 read.csv 函数将在 csv 文件的单元格中返回 NA is "i"。例如
read.table(text <- textConnection('a, b, c
b,i,i
'), sep = ',', head = TRUE)
a b c
1 b NA NA
有什么建议可以解决这个问题吗?
> sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_Australia.1252 LC_CTYPE=English_Australia.1252
[3] LC_MONETARY=English_Australia.1252 LC_NUMERIC=C
[5] LC_TIME=English_Australia.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] digest_0.6.3 evaluate_0.4.3 formatR_0.8 tools_3.0.1
干杯,邦友