Re: [R] Converting from a dataset to a single column
r user [EMAIL PROTECTED] writes: I have a dataset of 3 columns and 5 rows. temp-data.frame(col1=c(5,10,14,56,7),col2=c(4,2,8,3,34),col3=c(28,4,52,34,67)) I wish to convert this to a single column, with column 1 on top and column 3 on bottom. i.e. 5 10 14 56 7 4 2 8 3 34 28 4 52 34 67 Are there any functions that do this, and that will work well on much larger datasets (e.g. 1000 rows, 6000 columns)? unlist(temp,use.names=FALSE) Did you really mean column (as opposed to vector?), if so, matrix(unlist(temp,use.names=FALSE)) -- O__ Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Converting from a dataset to a single column
temp-data.frame(col1=c(5,10,14,56,7),col2=c(4,2,8,3,34),col3=c(28,4,52,34,67)) temp col1 col2 col3 154 28 2 1024 3 148 52 4 563 34 57 34 67 as.numeric(as.matrix(temp)) [1] 5 10 14 56 7 4 2 8 3 34 28 4 52 34 67 Whether this works well enough: temp - as.data.frame(matrix(1:(1000*6000), nr=1000)) dim(temp) [1] 1000 6000 date() ; num - as.numeric(as.matrix(temp)) ; date() [1] Mon Jan 23 19:40:25 2006 [1] Mon Jan 23 19:40:25 2006 length(num) [1] 600 Gabor On Mon, Jan 23, 2006 at 09:49:40AM -0800, r user wrote: I have a dataset of 3 columns and 5 rows. temp-data.frame(col1=c(5,10,14,56,7),col2=c(4,2,8,3,34),col3=c(28,4,52,34,67)) I wish to convert this to a single column, with column 1 on top and column 3 on bottom. i.e. 5 10 14 56 7 4 2 8 3 34 28 4 52 34 67 Are there any functions that do this, and that will work well on much larger datasets (e.g. 1000 rows, 6000 columns)? __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Csardi Gabor [EMAIL PROTECTED]MTA RMKI, ELTE TTK __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Converting from a dataset to a single column
?unlist temp-data.frame (col1=c(5,10,14,56,7),col2=c(4,2,8,3,34),col3=c(28,4,52,34,67)) temp col1 col2 col3 154 28 2 1024 3 148 52 4 563 34 57 34 67 unlist(temp) col11 col12 col13 col14 col15 col21 col22 col23 col24 col25 col31 col32 col33 col34 col35 5101456 7 4 2 8 33428 4 523467 On 1/23/06, r user [EMAIL PROTECTED] wrote: I have a dataset of 3 columns and 5 rows. temp-data.frame (col1=c(5,10,14,56,7),col2=c(4,2,8,3,34),col3=c(28,4,52,34,67)) I wish to convert this to a single column, with column 1 on top and column 3 on bottom. i.e. 5 10 14 56 7 4 2 8 3 34 28 4 52 34 67 Are there any functions that do this, and that will work well on much larger datasets (e.g. 1000 rows, 6000 columns)? __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Jim Holtman Cincinnati, OH +1 513 247 0281 What the problem you are trying to solve? [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Converting from a dataset to a single column
Hi ?stack and ?unlist are good starting points. HTH Petr On 23 Jan 2006 at 9:49, r user wrote: Date sent: Mon, 23 Jan 2006 09:49:40 -0800 (PST) From: r user [EMAIL PROTECTED] To: rhelp r-help@stat.math.ethz.ch Subject:[R] Converting from a dataset to a single column I have a dataset of 3 columns and 5 rows . temp-data.frame(col1=c(5,10,14,56,7),col2=c(4,2,8,3,34),col3=c(28,4,5 2,34,67)) I wish to convert this to a single column , with column 1 on top and column 3 on bottom . i.e. 5 10 14 56 7 4 2 8 3 34 28 4 52 34 67 Are there any functions that do this, and that will work well on much larger datasets (e.g. 1000 rows, 6000 columns)? __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Petr Pikal [EMAIL PROTECTED] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
