Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-09-01 Thread toby_marks
zcum[2:length(zz[,1]),] Thanks so much for al the help ! Dirk Eddelbuettel <[EMAIL PROTECTED]> 09/01/2006 02:59 PM To [EMAIL PROTECTED] cc r-help@stat.math.ethz.ch Subject Re: [R] cumulative growth rates indexed to a common starting point over n series of observations On

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-09-01 Thread Dirk Eddelbuettel
On 1 September 2006 at 14:59, Dirk Eddelbuettel wrote: | | On 1 September 2006 at 14:30, [EMAIL PROTECTED] wrote: | | The apply with the cumprod was exactly what I was after. The apply just | | wasn't clicking with me, and I had overlooked the cumprod. Thanks to all | | for pushing me down th

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-09-01 Thread toby_marks
That is choice !I'm starting to love this language. Thank-you ! Dirk Eddelbuettel <[EMAIL PROTECTED]> 09/01/2006 02:59 PM To [EMAIL PROTECTED] cc r-help@stat.math.ethz.ch Subject Re: [R] cumulative growth rates indexed to a common starting point over n series of o

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-09-01 Thread Dirk Eddelbuettel
On 1 September 2006 at 14:30, [EMAIL PROTECTED] wrote: | The apply with the cumprod was exactly what I was after. The apply just | wasn't clicking with me, and I had overlooked the cumprod. Thanks to all | for pushing me down the right path! | | Actually, what I am ultimately after is a way t

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-09-01 Thread toby_marks
.7916 122.5278 Dirk Eddelbuettel <[EMAIL PROTECTED]> 08/31/2006 05:03 PM To [EMAIL PROTECTED] cc r-help@stat.math.ethz.ch Subject Re: [R] cumulative growth rates indexed to a common starting point over n series of observations On 31 August 2006 at 15:22, [EMAIL PROTECTED] wrote

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-09-01 Thread toby_marks
ath.ethz.ch Subject Re: [R] cumulative growth rates indexed to a common starting point over n series of observations On 31 August 2006 at 15:22, [EMAIL PROTECTED] wrote: | What is the R way of computing cumulative growth rates given a series of | discrete values indexed . | | For instance, giv

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-08-31 Thread Dirk Eddelbuettel
On 31 August 2006 at 15:22, [EMAIL PROTECTED] wrote: | What is the R way of computing cumulative growth rates given a series of | discrete values indexed . | | For instance, given a matrix of 20 observations for each of 5 series (zz), | what is the most straight forward technique in R for compu

Re: [R] cumulative growth rates indexed to a common starting point over n series of observations

2006-08-31 Thread MARK LEEDS
i think you can add 1 to whatever series you are considering and then use cumprod() but check that that works. also do ?cumprod - Original Message - From: <[EMAIL PROTECTED]> To: Sent: Thursday, August 31, 2006 4:22 PM Subject: [R] cumulative growth rates indexed to a common st

[R] cumulative growth rates indexed to a common starting point over n series of observations

2006-08-31 Thread toby_marks
What is the R way of computing cumulative growth rates given a series of discrete values indexed . For instance, given a matrix of 20 observations for each of 5 series (zz), what is the most straight forward technique in R for computing cumulative growth (zzcum) ? It seems for the solution I'm