[R] merge two dataset and replace missing by 0
Hi r users, I have two data sets (X1, X2). For example, time1-c( 0, 8, 15, 22, 43, 64, 85, 106, 127, 148, 169, 190 ,211 ) outpue1-c(171 ,164 ,150 ,141 ,109 , 73 , 47 ,26 ,15 ,12 ,6 ,2 ,1 ) X1-cbind(time1,outpue1) time2-c( 0 ,8 ,15 , 22 ,43 , 64 ,85 ,106 ,148) output2-c( 5 ,5 ,4 ,5 ,5 ,4 ,1 ,2 , 1 ) X2-cbind(time2,output2) I want to merge X1 and X2 into a big dataset X by time1 and time2 so that the missing item in output2 will be replace by 0. For example, there is no output2 when time2=127, then the corresponding output will be 0. Anyone know how to use merge command to deal with this? Thanks, Kate [[alternative HTML version deleted]] __ 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.
Re: [R] merge two dataset and replace missing by 0
See ?merge with argument all=TRUE and replace by 0 afterwards. Uwe Ligges On 15.11.2010 16:42, Kate Hsu wrote: Hi r users, I have two data sets (X1, X2). For example, time1-c( 0, 8, 15, 22, 43, 64, 85, 106, 127, 148, 169, 190 ,211 ) outpue1-c(171 ,164 ,150 ,141 ,109 , 73 , 47 ,26 ,15 ,12 ,6 ,2 ,1 ) X1-cbind(time1,outpue1) time2-c( 0 ,8 ,15 , 22 ,43 , 64 ,85 ,106 ,148) output2-c( 5 ,5 ,4 ,5 ,5 ,4 ,1 ,2 , 1 ) X2-cbind(time2,output2) I want to merge X1 and X2 into a big dataset X by time1 and time2 so that the missing item in output2 will be replace by 0. For example, there is no output2 when time2=127, then the corresponding output will be 0. Anyone know how to use merge command to deal with this? Thanks, Kate [[alternative HTML version deleted]] __ 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.
Re: [R] merge two dataset and replace missing by 0
On Nov 15, 2010, at 10:42 AM, Kate Hsu wrote: Hi r users, I have two data sets (X1, X2). For example, time1-c( 0, 8, 15, 22, 43, 64, 85, 106, 127, 148, 169, 190 , 211 ) outpue1-c(171 ,164 ,150 ,141 ,109 , 73 , 47 ,26 ,15 ,12 ,6 , 2 ,1 ) X1-cbind(time1,outpue1) time2-c( 0 ,8 ,15 , 22 ,43 , 64 ,85 ,106 ,148) output2-c( 5 ,5 ,4 ,5 ,5 ,4 ,1 ,2 , 1 ) X2-cbind(time2,output2) I want to merge X1 and X2 into a big dataset X by time1 and time2 so that the missing item in output2 will be replace by 0. For example, there is no output2 when time2=127, then the corresponding output will be 0. Anyone know how to use merge command to deal with this? merge(X1,X2, by.x=time1, by.y=time2, all=TRUE) time1 outpue1 output2 1 0 171 5 2 8 164 5 3 15 150 4 4 22 141 5 5 43 109 5 6 64 73 4 7 85 47 1 8106 26 2 9127 15 NA 10 148 12 1 11 169 6 NA 12 190 2 NA 13 211 1 NA Thanks, Kate [[alternative HTML version deleted]] __ 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. David Winsemius, MD West Hartford, CT __ 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.
Re: [R] merge two dataset and replace missing by 0
On Mon, Nov 15, 2010 at 10:42 AM, Kate Hsu yhsu.rh...@gmail.com wrote: Hi r users, I have two data sets (X1, X2). For example, time1-c( 0, 8, 15, 22, 43, 64, 85, 106, 127, 148, 169, 190 ,211 ) outpue1-c(171 ,164 ,150 ,141 ,109 , 73 , 47 ,26 ,15 ,12 ,6 ,2 ,1 ) X1-cbind(time1,outpue1) time2-c( 0 ,8 ,15 , 22 ,43 , 64 ,85 ,106 ,148) output2-c( 5 ,5 ,4 ,5 ,5 ,4 ,1 ,2 , 1 ) X2-cbind(time2,output2) I want to merge X1 and X2 into a big dataset X by time1 and time2 so that the missing item in output2 will be replace by 0. For example, there is no output2 when time2=127, then the corresponding output will be 0. Anyone know how to use merge command to deal with this? Since these are time series you might want to use a time series package to do this: library(zoo) time1-c( 0, 8, 15, 22, 43, 64, 85, 106, 127, 148, 169, 190 ,211 ) output1-c(171 ,164 ,150 ,141 ,109 , 73 , 47 ,26 ,15 ,12 ,6 ,2 ,1 ) time2-c( 0 ,8 ,15 , 22 ,43 , 64 ,85 ,106 ,148) output2-c( 5 ,5 ,4 ,5 ,5 ,4 ,1 ,2 , 1 ) z1 - zoo(output1, time1) z2 - zoo(output2, time2) merge(z1, z2, fill = 0) -- Statistics Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com __ 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.
Re: [R] merge two dataset and replace missing by 0
Thanks for all of your help. It works to me. Kate On Mon, Nov 15, 2010 at 10:06 AM, David Winsemius dwinsem...@comcast.netwrote: On Nov 15, 2010, at 10:42 AM, Kate Hsu wrote: Hi r users, I have two data sets (X1, X2). For example, time1-c( 0, 8, 15, 22, 43, 64, 85, 106, 127, 148, 169, 190 ,211 ) outpue1-c(171 ,164 ,150 ,141 ,109 , 73 , 47 ,26 ,15 ,12 ,6 ,2 ,1 ) X1-cbind(time1,outpue1) time2-c( 0 ,8 ,15 , 22 ,43 , 64 ,85 ,106 ,148) output2-c( 5 ,5 ,4 ,5 ,5 ,4 ,1 ,2 , 1 ) X2-cbind(time2,output2) I want to merge X1 and X2 into a big dataset X by time1 and time2 so that the missing item in output2 will be replace by 0. For example, there is no output2 when time2=127, then the corresponding output will be 0. Anyone know how to use merge command to deal with this? merge(X1,X2, by.x=time1, by.y=time2, all=TRUE) time1 outpue1 output2 1 0 171 5 2 8 164 5 3 15 150 4 4 22 141 5 5 43 109 5 6 64 73 4 7 85 47 1 8106 26 2 9127 15 NA 10 148 12 1 11 169 6 NA 12 190 2 NA 13 211 1 NA Thanks, Kate [[alternative HTML version deleted]] __ 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.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD West Hartford, CT [[alternative HTML version deleted]] __ 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.
