Hi, My data has column names which has ` character. For example , *> names(dataframe) [1] "`region" "farmsize`" "farmincome" "maincrop" "claimvalue"* If i use these objects in my function, the following error is thrown. *lmm<-lm(``region`~farmincome) Error: attempt to use zero-length variable name* Is there a way, say an escape sequence or something similar in which we can give these objects with the colnames to R functions? Thanks in advance. Regards, Raji -- View this message in context: http://r.789695.n4.nabble.com/Column-names-containing-in-R-tp4648553.html Sent from the R help mailing list archive at Nabble.com.
Hello,
Can't you remove the backquotes from names(df)? If so, you can do it with
x <- c("`region", "farmsize`",
"farmincome", "maincrop", "claimvalue")
newx <- gsub("\\`", "", x)
Hope this helps,
Rui Barradas
Em 06-11-2012 13:21, Raji escreveu:> Hi,
>
> My data has column names which has ` character. For example ,
> *> names(dataframe)
> [1] "`region" "farmsize`" "farmincome"
"maincrop" "claimvalue"*
>
> If i use these objects in my function, the following error is thrown.
>
> *lmm<-lm(``region`~farmincome)
> Error: attempt to use zero-length variable name*
>
> Is there a way, say an escape sequence or something similar in which we can
> give these objects with the colnames to R functions?
>
> Thanks in advance.
>
> Regards,
> Raji
>
>
>
>
> --
> View this message in context:
http://r.789695.n4.nabble.com/Column-names-containing-in-R-tp4648553.html
> Sent from the R help mailing list archive at Nabble.com.
>
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On Nov 6, 2012, at 5:21 AM, Raji wrote:> Hi, > > My data has column names which has ` character. For example , > *> names(dataframe) > [1] "`region" "farmsize`" "farmincome" "maincrop" "claimvalue"* > > If i use these objects in my function, the following error is thrown. > > *lmm<-lm(``region`~farmincome) > Error: attempt to use zero-length variable name* > > Is there a way, say an escape sequence or something similar in which we can > give these objects with the colnames to R functions?The mathod used inread.table is to call make.names()> make.names(x)[1] "X.region" "farmsize." [3] "farmincome" "maincrop" [5] "claimvalue" -- David Winsemius, MD Alameda, CA, USA