Re: [R] transpose a data frame according to a specific variable
Both ways are doing well the job. Nice! Thanks again! -- View this message in context: http://r.789695.n4.nabble.com/transpose-a-data-frame-according-to-a-specific-variable-tp4702971p4703007.html Sent from the R help mailing list archive at Nabble.com. __ 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] transpose a data frame according to a specific variable
Dear R-users, I would like to transpose a large data.frame according to a specific column. Here's a reproductible example, it will be more understandable. At the moment, my data.frame looks like this example: DF - data.frame(id=c(A,A,A,B,B,B,C,C,C), Year=c(2001,2002,2003,2002,2003,2004,2000,2001,2002), Day=c(120,90,54,18,217,68,164,99,48)) I would like it being transformed to this (fake example again, still just for being understandable): finalDF - data.frame(id=c(A,B,C),2000=c(NA,NA,164),2001=c(120,NA,99), 2002=c(90,18,48),2003=c(54,217,NA),2004=c(NA,68,NA)) Any ideas for doing this easily? I haven't found any good answer on the web. Thanks for the help! -- View this message in context: http://r.789695.n4.nabble.com/transpose-a-data-frame-according-to-a-specific-variable-tp4702971.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] transpose a data frame according to a specific variable
One way is to use the reshape2 package: library(reshape2) dcast(DF, id ~ Year, value.var = Day) Dennis On Mon, Feb 9, 2015 at 7:47 AM, jeff6868 geoffrey_kl...@etu.u-bourgogne.fr wrote: Dear R-users, I would like to transpose a large data.frame according to a specific column. Here's a reproductible example, it will be more understandable. At the moment, my data.frame looks like this example: DF - data.frame(id=c(A,A,A,B,B,B,C,C,C), Year=c(2001,2002,2003,2002,2003,2004,2000,2001,2002), Day=c(120,90,54,18,217,68,164,99,48)) I would like it being transformed to this (fake example again, still just for being understandable): finalDF - data.frame(id=c(A,B,C),2000=c(NA,NA,164),2001=c(120,NA,99), 2002=c(90,18,48),2003=c(54,217,NA),2004=c(NA,68,NA)) Any ideas for doing this easily? I haven't found any good answer on the web. Thanks for the help! -- View this message in context: http://r.789695.n4.nabble.com/transpose-a-data-frame-according-to-a-specific-variable-tp4702971.html Sent from the R help mailing list archive at Nabble.com. __ 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.
Re: [R] transpose a data frame according to a specific variable
library(tidyr) spread(DF,Year,Day) On 09 Feb 2015, at 16:47, jeff6868 geoffrey_kl...@etu.u-bourgogne.fr wrote: finalDF - data.frame(id=c(A,B,C),2000=c(NA,NA,164),2001=c(120,NA,99), 2002=c(90,18,48),2003=c(54,217,NA),2004=c(NA,68,NA)) signature.asc Description: Message signed with OpenPGP using GPGMail __ 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.
