Re: [R] How to 'de-cross' a table?
Hi Thomas, Your code works perfectly! Thanks a lot, Sander. Thomas Lumley wrote: On Fri, 3 Jun 2005, Sander Oom wrote: Dear R users, I have received a table in the following format: id a b c1 c2 d1 d2 1 1 1 65 97 78 98 2 1 2 65 97 42 97 3 2 1 65 68 97 98 4 2 2 65 97 97 98 Factors of the design are: a, b, and e, where e has levels c and d. The levels c and d then have 2 replicates (r) each. Now I would like to get: id a b e r value 1 1 1 c 1 65 2 1 1 c 2 97 3 1 1 d 1 78 4 1 1 d 2 98 Any suggestions on how to tackle this? I'm not sure what the 'task' is called, so struggle to effectively search the web or R help. reshape() is the probably function. It seems you need to use it twice, for the two levels of uncrossing d1-reshape(d, direction=long, varying=list(c(c1,d1),c(c2,d2)), v.names=c(rep1,rep2),timevar=r, times=c(c,d)) d1 id a b r rep1 rep2 1.c 1 1 1 c 65 97 2.c 2 1 2 c 65 97 3.c 3 2 1 c 65 68 4.c 4 2 2 c 65 97 1.d 1 1 1 d 78 98 2.d 2 1 2 d 42 97 3.d 3 2 1 d 97 98 4.d 4 2 2 d 97 98 reshape(d1, direction=long, varying=list(c(rep1,rep2)), v.names=value,idvar=tmp, timevar=r) id a b r value tmp 1.1 1 1 1 165 1 2.1 2 1 2 165 2 3.1 3 2 1 165 3 4.1 4 2 2 165 4 5.1 1 1 1 178 5 6.1 2 1 2 142 6 7.1 3 2 1 197 7 8.1 4 2 2 197 8 1.2 1 1 1 297 1 2.2 2 1 2 297 2 3.2 3 2 1 268 3 4.2 4 2 2 297 4 5.2 1 1 1 298 5 6.2 2 1 2 297 6 7.2 3 2 1 298 7 8.2 4 2 2 298 8 You can then delete the `tmp` variable if you don't need it. An easier way to uncross would be with stack() stack(d[,4:7]) values ind 1 65 c1 2 65 c1 3 65 c1 4 65 c1 5 97 c2 6 97 c2 7 68 c2 8 97 c2 9 78 d1 10 42 d1 11 97 d1 12 97 d1 13 98 d2 14 97 d2 15 98 d2 16 98 d2 but you lose the other variables. -thomas __ 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 -- Dr Sander P. Oom Animal, Plant and Environmental Sciences, University of the Witwatersrand Private Bag 3, Wits 2050, South Africa Tel (work) +27 (0)11 717 64 04 Tel (home) +27 (0)18 297 44 51 Fax +27 (0)18 299 24 64 Email [EMAIL PROTECTED] Web www.oomvanlieshout.net/sander __ 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
[R] How to 'de-cross' a table?
Dear R users, I have received a table in the following format: id a b c1 c2 d1 d2 1 1 1 65 97 78 98 2 1 2 65 97 42 97 3 2 1 65 68 97 98 4 2 2 65 97 97 98 Factors of the design are: a, b, and e, where e has levels c and d. The levels c and d then have 2 replicates (r) each. Now I would like to get: id a b e r value 1 1 1 c 1 65 2 1 1 c 2 97 3 1 1 d 1 78 4 1 1 d 2 98 Any suggestions on how to tackle this? I'm not sure what the 'task' is called, so struggle to effectively search the web or R help. Thanks, Sander. Dr Sander P. Oom Animal, Plant and Environmental Sciences, University of the Witwatersrand Private Bag 3, Wits 2050, South Africa Tel (work) +27 (0)11 717 64 04 Tel (home) +27 (0)18 297 44 51 Fax +27 (0)18 299 24 64 Email [EMAIL PROTECTED] Web www.oomvanlieshout.net/sander __ 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] How to 'de-cross' a table?
On Fri, Jun 03, 2005 at 04:33:44PM +0200, Sander Oom wrote : Dear R users, I have received a table in the following format: id a b c1 c2 d1 d2 1 1 1 65 97 78 98 2 1 2 65 97 42 97 3 2 1 65 68 97 98 4 2 2 65 97 97 98 Factors of the design are: a, b, and e, where e has levels c and d. The levels c and d then have 2 replicates (r) each. Now I would like to get: id a b e r value 1 1 1 c 1 65 2 1 1 c 2 97 3 1 1 d 1 78 4 1 1 d 2 98 I think that reshape is the tool you are looking for. -- Charles __ 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] How to 'de-cross' a table?
On Fri, 3 Jun 2005, Sander Oom wrote: Dear R users, I have received a table in the following format: id a b c1 c2 d1 d2 1 1 1 65 97 78 98 2 1 2 65 97 42 97 3 2 1 65 68 97 98 4 2 2 65 97 97 98 Factors of the design are: a, b, and e, where e has levels c and d. The levels c and d then have 2 replicates (r) each. Now I would like to get: id a b e r value 1 1 1 c 1 65 2 1 1 c 2 97 3 1 1 d 1 78 4 1 1 d 2 98 Any suggestions on how to tackle this? I'm not sure what the 'task' is called, so struggle to effectively search the web or R help. reshape() is the probably function. It seems you need to use it twice, for the two levels of uncrossing d1-reshape(d, direction=long, varying=list(c(c1,d1),c(c2,d2)), v.names=c(rep1,rep2),timevar=r, times=c(c,d)) d1 id a b r rep1 rep2 1.c 1 1 1 c 65 97 2.c 2 1 2 c 65 97 3.c 3 2 1 c 65 68 4.c 4 2 2 c 65 97 1.d 1 1 1 d 78 98 2.d 2 1 2 d 42 97 3.d 3 2 1 d 97 98 4.d 4 2 2 d 97 98 reshape(d1, direction=long, varying=list(c(rep1,rep2)), v.names=value,idvar=tmp, timevar=r) id a b r value tmp 1.1 1 1 1 165 1 2.1 2 1 2 165 2 3.1 3 2 1 165 3 4.1 4 2 2 165 4 5.1 1 1 1 178 5 6.1 2 1 2 142 6 7.1 3 2 1 197 7 8.1 4 2 2 197 8 1.2 1 1 1 297 1 2.2 2 1 2 297 2 3.2 3 2 1 268 3 4.2 4 2 2 297 4 5.2 1 1 1 298 5 6.2 2 1 2 297 6 7.2 3 2 1 298 7 8.2 4 2 2 298 8 You can then delete the `tmp` variable if you don't need it. An easier way to uncross would be with stack() stack(d[,4:7]) values ind 1 65 c1 2 65 c1 3 65 c1 4 65 c1 5 97 c2 6 97 c2 7 68 c2 8 97 c2 9 78 d1 10 42 d1 11 97 d1 12 97 d1 13 98 d2 14 97 d2 15 98 d2 16 98 d2 but you lose the other variables. -thomas __ 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
