?filter > x [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 > filter(x, rep(1,4)) Time Series: Start = 1 End = 20 Frequency = 1 [1] NA 10 14 18 22 26 30 34 38 42 46 50 54 58 62 66 70 74 NA NA
On Sun, Mar 1, 2009 at 9:29 PM, Mohammad Sabr <mohammad_s...@yahoo.com> wrote: > I am trying to run a loop where I can sum parts of a matrix. For example, I > want at each step in the loop to sum the the next 4-values of a vector. I > tried to do the following but the result were wrong: > > for (i in 4:T) { > data_q[i-3,]=sum(data_m[i-3,]:data_m[i,]) > } > > can anyone please direct me on what should I do to run this loop properly > > Thanks in advance > [[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. > > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.