I need help with gls{nlme}.
Specifically, I am estimating an equation with AR(1) using maximum-likelihood. I am not understanding the correlationoption below. Help appreciated. === library(nlme) eq1<-log(chnimp)~log(chempi)+log(gas)+log(rtwex)+befile6+ affile6+afdec6 reg1<-gls(eq1,data=mydata,correlation=corAR1(),method="ML",verbose=T) [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
I need to have all elements of a matrix multiplied by a weight before
being post-multiplied by itself, as shown in the forst block of codes below. I can also multiply the matrix by the square root of the weight and then take the outer product. Actually, what I need is this. Denote each row of the matrix by a row vector as xi and each element of the weighting vector as wi. Then, I need the sum of wi * t(xi) %*% xi over i. Any suggestion for a compact approach would be appreciated. set.seed(76543211) w<-1:10; w a<-matrix(rpois(20,2),nrow=10); a b<-a a<-w*a t(a)%*%b set.seed(76543211) a<-matrix(rpois(20,2),nrow=10); a a<-sqrt(w)*a; a t(a)%*%a On 1/4/2017 5:41 PM, Steven Yen wrote: > I need help with gls{nlme}. > Specifically, I am estimating an equation with AR(1) using > maximum-likelihood. I am not understanding the correlationoption > below. Help appreciated. > > === > library(nlme) > eq1<-log(chnimp)~log(chempi)+log(gas)+log(rtwex)+befile6+ > affile6+afdec6 > reg1<-gls(eq1,data=mydata,correlation=corAR1(),method="ML",verbose=T) > [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
Is this a question? You seem to have three possible calculations, have already implemented two of them (?) and it is unclear (to me) what you think the right answer for any of them is supposed to be.
-- Sent from my phone. Please excuse my brevity. On June 7, 2017 8:50:55 PM PDT, Steven Yen <[hidden email]> wrote: >I need to have all elements of a matrix multiplied by a weight before >being post-multiplied by itself, as shown in the forst block of codes >below. I can also multiply the matrix by the square root of the weight >and then take the outer product. > >Actually, what I need is this. Denote each row of the matrix by a row >vector as xi and each element of the weighting vector as wi. Then, I >need the sum of wi * t(xi) %*% xi over i. > >Any suggestion for a compact approach would be appreciated. > >set.seed(76543211) >w<-1:10; w >a<-matrix(rpois(20,2),nrow=10); a >b<-a >a<-w*a >t(a)%*%b > >set.seed(76543211) >a<-matrix(rpois(20,2),nrow=10); a >a<-sqrt(w)*a; a >t(a)%*%a > > > > >On 1/4/2017 5:41 PM, Steven Yen wrote: >> I need help with gls{nlme}. >> Specifically, I am estimating an equation with AR(1) using >> maximum-likelihood. I am not understanding the correlationoption >> below. Help appreciated. >> >> === >> library(nlme) >> eq1<-log(chnimp)~log(chempi)+log(gas)+log(rtwex)+befile6+ >> affile6+afdec6 >> reg1<-gls(eq1,data=mydata,correlation=corAR1(),method="ML",verbose=T) >> > > [[alternative HTML version deleted]] > >______________________________________________ >[hidden email] mailing list -- To UNSUBSCRIBE and more, see >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. ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
OK Thanks. Your response made me think. Here (the last line) is what I need:
set.seed(76543211) w<-1:10; w a<-matrix(rpois(20,2),nrow=10); a t(w*a)%*%a On 6/8/2017 12:09 PM, Jeff Newmiller wrote: > Is this a question? You seem to have three possible calculations, have already implemented two of them (?) and it is unclear (to me) what you think the right answer for any of them is supposed to be. > -- Sent from my phone. Please excuse my brevity. On June 7, 2017 > 8:50:55 PM PDT, Steven Yen <[hidden email]> wrote: >> I need to have all elements of a matrix multiplied by a weight before >> being post-multiplied by itself, as shown in the forst block of codes >> below. I can also multiply the matrix by the square root of the weight >> and then take the outer product. >> >> Actually, what I need is this. Denote each row of the matrix by a row >> vector as xi and each element of the weighting vector as wi. Then, I >> need the sum of wi * t(xi) %*% xi over i. >> >> Any suggestion for a compact approach would be appreciated. >> >> set.seed(76543211) >> w<-1:10; w >> a<-matrix(rpois(20,2),nrow=10); a >> b<-a >> a<-w*a >> t(a)%*%b >> >> set.seed(76543211) >> a<-matrix(rpois(20,2),nrow=10); a >> a<-sqrt(w)*a; a >> t(a)%*%a [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
Fine, except that you already seen to have a very compact solution if that really is what you are looking for. What am I missing?
-- Sent from my phone. Please excuse my brevity. On June 7, 2017 9:16:48 PM PDT, Steven Yen <[hidden email]> wrote: >OK Thanks. Your response made me think. Here (the last line) is what I >need: > >set.seed(76543211) >w<-1:10; w >a<-matrix(rpois(20,2),nrow=10); a >t(w*a)%*%a > >On 6/8/2017 12:09 PM, Jeff Newmiller wrote: >> Is this a question? You seem to have three possible calculations, >have already implemented two of them (?) and it is unclear (to me) what >you think the right answer for any of them is supposed to be. >> -- Sent from my phone. Please excuse my brevity. On June 7, 2017 >> 8:50:55 PM PDT, Steven Yen <[hidden email]> wrote: >>> I need to have all elements of a matrix multiplied by a weight >before >>> being post-multiplied by itself, as shown in the forst block of >codes >>> below. I can also multiply the matrix by the square root of the >weight >>> and then take the outer product. >>> >>> Actually, what I need is this. Denote each row of the matrix by a >row >>> vector as xi and each element of the weighting vector as wi. Then, I >>> need the sum of wi * t(xi) %*% xi over i. >>> >>> Any suggestion for a compact approach would be appreciated. >>> >>> set.seed(76543211) >>> w<-1:10; w >>> a<-matrix(rpois(20,2),nrow=10); a >>> b<-a >>> a<-w*a >>> t(a)%*%b >>> >>> set.seed(76543211) >>> a<-matrix(rpois(20,2),nrow=10); a >>> a<-sqrt(w)*a; a >>> t(a)%*%a ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
In reply to this post by syen04
I am running R-3.0.3 on RStudio 1.1.183. I have recently gotten the following error message while saving an .RData file with the save.image command. I have not had this problem until recently. Help appreciated.
=== Error in save.image("bope1a.RData") : image could not be renamed and is left in bope1a.RDataTmp [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
Google is your friend (e.g. [1]). Gist of story is that that an existing file of that name is being "protected" by the operating system and you need to use filesystem utilities or reboot your machine to release the existing file from this condition.
[1] https://stat.ethz.ch/pipermail/r-help/2002-April/020169.html -- Sent from my phone. Please excuse my brevity. On January 26, 2018 12:27:55 AM PST, Steven Yen <[hidden email]> wrote: >I am running R-3.0.3 on RStudio 1.1.183. I have recently gotten the >following error message while saving an .RData file with the save.image >command. I have not had this problem until recently. Help appreciated. > >=== >Error in save.image("bope1a.RData") : > image could not be renamed and is left in bope1a.RDataTmp > > > [[alternative HTML version deleted]] > >______________________________________________ >[hidden email] mailing list -- To UNSUBSCRIBE and more, see >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. ______________________________________________ [hidden email] mailing list -- To UNSUBSCRIBE and more, see 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. |
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