Thanks. Actually the sHeaders was a line in tData itself ... I just did sHeaders = tData [1,]
How can I can build it without factors like your first suggestions? -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Ivan Calandra Sent: 02 November 2010 20:22 To: r-help@r-project.org Subject: Re: [R] Setting the names of a data.frame Hi, The problem is that all your columns of sHeaders are factors. It might be better to set stringsAsFactors to FALSE when you build it. Or you can do it with a for loop like this: for (i in 1:length(sHeaders)){ names(tData)[i] <- as.character(sHeaders[1,i]) } Or with lapply: names(tData) <- unlist(lapply(sHeaders[1, ], FUN=as.character)) HTH, Ivan Le 11/2/2010 14:58, Santosh Srinivas a écrit : > I have tData as below. I need to set the names with the headers from the > first row in sHeaders > Sorry .. forgot how to set the names from row in another data frame .. pls > advise. > > names(tData) = sHeaders[1,] does not work correctly > > Also, why doesn't drop.levels(sHeaders) not work? > > dput(tData) > structure(list(V1 = structure(c(3L, 1L, 1L, 2L), .Label = c("P H Ravi > Kumar", > "Rahul Kumar Singh", "Ramu GSV"), class = "factor"), V2 = structure(c(1L, > 3L, 3L, 2L), .Label = c("05/10/2010", "09/09/2010", "30/09/2010" > ), class = "factor"), V3 = structure(c(2L, 1L, 1L, 2L), .Label = c("B", > "S"), class = "factor"), V4 = structure(c(2L, 3L, 3L, 1L), .Label = > c("2120", > "4000", "11000"), class = "factor"), V5 = structure(c(1L, 2L, > 2L, 1L), .Label = c("", "0.01"), class = "factor"), V6 = structure(c(2L, > 3L, 3L, 1L), .Label = c("765", "1000", "11000"), class = "factor"), > V7 = structure(c(1L, 2L, 2L, 1L), .Label = c("", "0.01"), class = > "factor")), .Names = c("V1", > "V2", "V3", "V4", "V5", "V6", "V7"), row.names = 5:8, class = "data.frame") > > > dput(sHeaders) > structure(list(V1 = structure(1L, .Label = c("Name of Acquirer / Seller", > "Qty", "Ramu GSV"), class = "factor"), V2 = structure(3L, .Label = > c("05/10/2010", > "%", "Transaction Date"), class = "factor"), V3 = structure(1L, .Label = > c("Buy /Sale", > "Qty", "S"), class = "factor"), V4 = structure(3L, .Label = c("4000", > "%", "No.of Shares Transacted"), class = "factor"), V5 = structure(2L, > .Label = c("", > "Holding after Transaction"), class = "factor"), V6 = structure(NA_integer_, > .Label = "1000", class = "factor"), > V7 = structure(NA_integer_, .Label = "", class = "factor")), .Names = > c("V1", > "V2", "V3", "V4", "V5", "V6", "V7"), row.names = 3L, class = "data.frame") > > > Thanks very much. > > ______________________________________________ > R-help@r-project.org mailing list > 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. > -- Ivan CALANDRA PhD Student University of Hamburg Biozentrum Grindel und Zoologisches Museum Abt. Säugetiere Martin-Luther-King-Platz 3 D-20146 Hamburg, GERMANY +49(0)40 42838 6231 ivan.calan...@uni-hamburg.de ********** http://www.for771.uni-bonn.de http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php ______________________________________________ R-help@r-project.org mailing list 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 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.
