Re: [R] using rollapply to calculate a moving sum or running sum?

2013-08-03 Thread Enrico Schumann
#[20,] NA NA NA NA NA A.K. - Original Message - From: Anika Masters anika.mast...@gmail.com To: R help r-help@r-project.org Cc: Sent: Thursday, June 27, 2013 3:00 PM Subject: [R] using rollapply to calculate a moving sum or running sum? #using rollapply to calculate

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-08-03 Thread Gabor Grothendieck
On Sat, Aug 3, 2013 at 7:16 AM, Enrico Schumann e...@enricoschumann.net wrote: On Fri, 02 Aug 2013, Anika Masters anika.mast...@gmail.com writes: This is not critical, but I am curious to learn. Are there any suggestions for speeding up the process to calculate a moving row sum? (Ideally from

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-08-03 Thread William Dunlap
-Original Message- From: William Dunlap Sent: Friday, August 02, 2013 2:57 PM To: 'Anika Masters'; arun Cc: R help Subject: RE: [R] using rollapply to calculate a moving sum or running sum? Try the filter() function. Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-08-02 Thread Anika Masters
to calculate a moving sum or running sum? #using rollapply to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried rollapply and get the error message #Error in seq.default(start.at, NROW(data), by = by) : # wrong sign in 'by' argument

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-08-02 Thread William Dunlap
To: R help r-help@r-project.org Cc: Sent: Thursday, June 27, 2013 3:00 PM Subject: [R] using rollapply to calculate a moving sum or running sum? #using rollapply to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried rollapply

[R] using rollapply to calculate a moving sum or running sum?

2013-06-27 Thread Anika Masters
#using rollapply to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried rollapply and get the error message #Error in seq.default(start.at, NROW(data), by = by) : # wrong sign in 'by' argument #example: mymatrix - ( matrix(data=1:100,

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-06-27 Thread Adams, Jean
This gets you close ... Jean library(zoo) t(apply(mymatrix, 1, rollapply, w, sum)) On Thu, Jun 27, 2013 at 2:00 PM, Anika Masters anika.mast...@gmail.comwrote: #using rollapply to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-06-27 Thread Gabor Grothendieck
On Thu, Jun 27, 2013 at 3:00 PM, Anika Masters anika.mast...@gmail.com wrote: #using rollapply to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried rollapply and get the error message #Error in seq.default(start.at, NROW(data), by = by) :

Re: [R] using rollapply to calculate a moving sum or running sum?

2013-06-27 Thread arun
: Sent: Thursday, June 27, 2013 3:00 PM Subject: [R] using rollapply to calculate a moving sum or running sum? #using rollapply to calculate a moving sum or running sum? #I am tryign to use rollapply to calcualte a moving sum? #I tried rollapply and get the error message #Error in seq.default