[R] Help with Sequential Differencing

Dear R Users, I have struggled with the following problem for days, which I thought was simple, although it would likely be basic to most of you. I am working with time series data. In my script, my intention is to create first differences of the variables in the file so that I end up estimat

Re: [R] Help with Sequential Differencing

Dear R Users, Sorry for what seems like I am re-posting. When I was typing my initial posting, I intended to copy and paste the commands from my script, but ended up forgetting. I am now pasting the commands in this email.NB: Below is a copy of 'all' the relevant commands in my script    ###

Re: [R] Help with Sequential Differencing

Dear Sarah, Thanks very much for the assistance. I will go through what you have suggested to understand. Lexi - Original Message - From: Sarah Goslee To: "Lekgatlhamang, lexi Setlhare" Cc: "r-help@r-project.org" Sent: Friday, June 15, 2012 3:58 PM Subjec

Re: [R] Help with Sequential Differencing

On Friday, June 15, 2012, Lekgatlhamang, lexi Setlhare wrote: Dear R Users, >Sorry for what seems like I am re-posting. When I was typing my initial >posting, I intended to copy and paste the commands from my script, but ended >up forgetting. I am now pasting the commands in this email

Re: [R] Help with Sequential Differencing

e's a more R-ish way:   # Differences of Cred DCred <- list() for(i in 1:5){ print(DCred[[i]]<- diff(DCred, lag=i, difference=1))   }   DCred[[1]] Sarah On Friday, June 15, 2012, Lekgatlhamang, lexi Setlhare wrote: Dear R Users, >Sorry for what seems like I am re-posting. When I was t

Re: [R] Help with Sequential Differencing

stand much better. I will turn to testing the second code. Cheers. Lexi   - Original Message - From: Sarah Goslee To: "Lekgatlhamang, lexi Setlhare" Cc: "r-help@r-project.org" Sent: Friday, June 15, 2012 3:58 PM Subject: Re: [R] Help with Sequential Differencing I m

[R] Adjusting length of series

Dear R Users,   I ask the following question in order to learn more on the use of 'assign' and 'paste' functions and for loop; otherwise what I am asking could be solved by binding the various first differences of the series using the 'ts.union' operator.   The problem is: I have several varia

Re: [R] Adjusting length of series

Thanks a lot Peter. It is a learning process for me. From: Petr PIKAL Cc: R-Help Sent: Thursday, June 28, 2012 6:20 PM Subject: Re: [R] Adjusting length of series Hi I use R for quite a long time and as I remember I did not use such assign paste i loop

Re: [R] Adjusting length of series

In the equation with error message, only the last term is specified by referencing its name (ie., Dcr$Dbobc3[1:29]. Also note that the error occurs whether I append '[1:29]' to Dcr$Dbobc or not. How do I resolve this? Thanks. Lexi - Original Message - From: "Lekgatlh

[R] Adjusting length of series

Hi I have a follow up question, relating to subsetting to list items. After using the list and min(sapply()) method to adjust the length of the variables, I specify a dynamic regression equation using the variables in the list. My list looks like this: Dcr<- list(Dcre1=DCred1,Dcre2=DCred2,Dcre3

Re: [R] Adjusting length of series

Thanks a lot David and A.K. for the detailed and helpful suggestions. Lexi Cc: R help Sent: Sunday, July 1, 2012 3:39 AM Subject: Re: [R] Adjusting length of series Hello, Try this: Dcr<-lapply(1:5,function(x) rnorm(10,15)) names(Dcr)<- c("Dcre1","D

Re: [R] Adjusting length of series

Hi David and AK, I have been trying to implement your suggestions since yesterday, but I encountered some challenges.   As for David's suggestions, I could only implement it after some modifications. Using an abridged version of my data, I dpud my dataset and then show my steps below.   > dp

Re: [R] Adjusting length of series

Noted David, and thanks very much.   Lexi From: David Winsemius Sent: Monday, July 2, 2012 4:26 PM Subject: Re: [R] Adjusting length of series On Jul 2, 2012, at 5:13 AM, Lekgatlhamang, lexi Setlhare wrote: > Hi David and AK, > I have been try

Re: [R] Adjusting length of series

Thanks very much A.K. I have to admit that my problem was not clearly stated, with the structure of my data provided. Now all is well.   Cheers Lexi Cc: R help Sent: Monday, July 2, 2012 4:40 PM Subject: Re: [R] Adjusting length of series Hello, The

[R] A graph with a positive y-axis intercept

Dear all,   I have a challenge with a supposedly simple graph (a scatter). I wanted to use R to create a plot/graph with a positive y-axis intercept but it does not seem to give me what I expect to see. As an example, I used the following values   > X<- c(0, 4, 8, 11) > Y<- c(8, 12, 15, 22) then

Re: [R] A graph with a positive y-axis intercept

intercept Your question is not entirely clear to me, but I think you might want: plot(X, Y, xlim=c(0, 25), ylim=c(0, 25)) Sarah On Thu, Jul 19, 2012 at 5:31 PM, Lekgatlhamang, lexi Setlhare > Dear all, > > I have a challenge with a supposedly simple graph (a scatter). I wanted to >