It appears that you are just trying to use the first row to create a column name for the rest of the column. If that is all you are doing something like this is quicker, but it uses the data frame.
> set.seed(42) > tTargTFS <- data.frame(matrix(replicate(100, paste0(sample(LETTERS, 6), > collapse="")), 10), stringsAsFactors=FALSE) > New <- tTargTFS[ -1, ] > colnames(New) [1] "X1" "X2" "X3" "X4" "X5" "X6" "X7" "X8" "X9" "X10" > colnames(New) <- tTargTFS[1, ] > colnames(New) [1] "XZGTOK" "RYSNXD" "JKNXPI" "XVHFQP" "BOZEMK" "MLBHTV" "OQGWZM" "CMXSLB" "GOUDTJ" [10] "SYMEXP" > str(New) 'data.frame': 9 obs. of 10 variables: $ XZGTOK: chr "TDPQKX" "YGLVWC" "MOVDXT" "CMJUXR" ... $ RYSNXD: chr "HUQFAC" "FLEQAH" "NAZDHX" "UOFCBG" ... $ JKNXPI: chr "XYFQTM" "QXUNSC" "TPDBKQ" "TUEVGD" ... $ XVHFQP: chr "XTDGEQ" "DZBXLC" "TSVLYJ" "ELXYFV" ... $ BOZEMK: chr "EDLVHY" "HNASCL" "OPRCGT" "NDUEXS" ... $ MLBHTV: chr "KDHXCU" "MCFVGN" "XYKJDF" "OXITPV" ... $ OQGWZM: chr "QXJGBW" "TCRWEY" "BUNKIF" "PUCWDB" ... $ CMXSLB: chr "MIQLWV" "LCWAJE" "CMPVHR" "HLDSOB" ... $ GOUDTJ: chr "XGCBVK" "VKLEQG" "EADZLR" "CWNDTF" ... $ SYMEXP: chr "RFIHTE" "RDCXUF" "XTYEBA" "HIRFLP" ... ------------------------------------- David L Carlson Department of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Matthew Sent: Monday, July 11, 2016 5:34 PM To: Rolf Turner Cc: r-help@r-project.org Subject: Re: [R] use value in variable to be name of another variable Hi Rolf, Thanks for the warning. I think because my initial efforts used the assign function, that Jim provided his solution using it. Any suggestions for how it could be done without assign() ? Matthew On 7/11/2016 6:31 PM, Rolf Turner wrote: > On 12/07/16 10:13, Matthew wrote: >> Hi Jim, >> >> Wow ! And it does exactly what I was looking for. Thank you very >> much. >> >> That assign function is pretty nice. I should become more familiar >> with it. > > Indeed you should, and assign() is indeed nice and useful and handy. > But it should be used with care and circumspection. It *alters the > global environment* which is fraught with peril. Generally speaking > most things that can be done with assign() (and its companion function > get()) are better and more safely done using lists and functions and > other "natural" R-ish constructs. Resist the temptation to turn R into > a macro language. > > cheers, > > Rolf Turner > ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
