Keith, are you looking for 'cumsum' ? Gabor
On Sat, Jan 05, 2008 at 08:32:41AM -0600, Keith Jones wrote: > Hi, > > Maybe I have not been looking in the right spot, but, I have not been > able to fine a command to automatically calculate the running > cumulative sum of a vector. Is there such a command? > > Example of current code: > > eig$values > [1] 678.365651 6.769697 2.853783 > > prop<-eig$values/sum(eig$values) > > prop > [1] 0.986012163 0.009839832 0.004148005 > > cum<-c(prop[1],sum(prop[1:2]),sum(prop[1:3])) > > cum > [1] 0.9860122 0.9958520 1.0000000 > > This works, but, if the length of the vector changes I have to > manually change the code. > > Thanks, > > Keith Jones > > ______________________________________________ > 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. -- Csardi Gabor <[EMAIL PROTECTED]> MTA RMKI, ELTE TTK ______________________________________________ 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.
