Re: [R] Creating quarterly data
Thanks, Allan, that did the trick :) Best, Thomas On Jun 28, 2010, at 6:13 PM, Allan Engelhardt wrote: One approach: d <- data.frame(x1=c(2,3,4,1,5,8), x2=c(4,1,6,4,6,5), time=1:6) d$quarter <- (d$time-1) %/% 4 # Or whatever your logic is aggregate(cbind(x1,x2) ~ quarter, data = d, sum) # quarter x1 x2 # 1 0 10 15 # 2 1 13 11 Hope this helps Allan On 28/06/10 13:23, Thomas Jensen wrote: Dear R Experts, I have data in the following format x1x2time 241 312 463 144 565 856 ... ... ... 15399 34400 Time represents each month which simply has a number from 1 to 400 (i.e. the data covers 400 months). I would like to somehow create two new variables which counts x1 and x2 as quarterly data in stead of monthly. Like this: x1x1Quarter 10121 12152 ... ... ... 2321100 Can any one tell me how this can be done in R? With kind regards, Thomas Jensen __ 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] Creating quarterly data
One approach: d <- data.frame(x1=c(2,3,4,1,5,8), x2=c(4,1,6,4,6,5), time=1:6) d$quarter <- (d$time-1) %/% 4 # Or whatever your logic is aggregate(cbind(x1,x2) ~ quarter, data = d, sum) # quarter x1 x2 # 1 0 10 15 # 2 1 13 11 Hope this helps Allan On 28/06/10 13:23, Thomas Jensen wrote: Dear R Experts, I have data in the following format x1x2time 241 312 463 144 565 856 ... ... ... 15399 34400 Time represents each month which simply has a number from 1 to 400 (i.e. the data covers 400 months). I would like to somehow create two new variables which counts x1 and x2 as quarterly data in stead of monthly. Like this: x1x1Quarter 10121 12152 ... ... ... 2321100 Can any one tell me how this can be done in R? With kind regards, Thomas Jensen __ 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.
[R] Creating quarterly data
Dear R Experts, I have data in the following format x1 x2 time 2 4 1 3 1 2 4 6 3 1 4 4 5 6 5 8 5 6 . . . . . . . . . 1 5 399 3 4 400 Time represents each month which simply has a number from 1 to 400 (i.e. the data covers 400 months). I would like to somehow create two new variables which counts x1 and x2 as quarterly data in stead of monthly. Like this: x1 x1 Quarter 10 12 1 12 15 2 . . . . . . . . . 23 21 100 Can any one tell me how this can be done in R? With kind regards, Thomas Jensen __ 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.
