Re: [R] Expanding a VCV Matrix

Oh.you are right.sorry. So many work nowadays, even cant see things properly. Anyways thanks for your input. 2011/4/21 Uwe Ligges : > > > On 21.04.2011 17:08, Maithula Chandrashekhar wrote: >> >> Thanks Uwe for your insight. However this could not solve my pr

Re: [R] Expanding a VCV Matrix

t; "variable3" "variable4" "variable2" Therefore 'variable2' should appear twice in my modified VCV matrix, which was not there in your suggestion. Is there any better any on how can I do that? or it is really imposable to achieve? Thanks, 2011/4/21 Uwe Ligges

[R] Expanding a VCV Matrix

Dear all, I have special task to expand a given VCV matrix, however could not accomplice yet. Let say I have following VCV matrix > mat <- matrix(c(1,2,0,2,5,0.5,0,0.5,3), 3, 3) > colnames(mat) <- rownames(mat) <- paste("variable", 1:3) > mat variable 1 variable 2 variable 3 variable 1

[R] A Math question

Dear all, I admit this is not anything to do R and even with Statistics perhaps. Strictly speaking this is a math related question. However I have some reasonable feeling that experts here would come up with some elegant suggestion to my question. Here my question is: What is sum of all Integers?

[R] I want to ask user to create a typical matrix, otherwise there should be some error displaying...

Dear all, I am into some bigger project and in implementing that, I have come across a problem, wherein I have to ask user to create a Matrix with all elements either NA value or some "Date" object, preferably in mm/dd/yy format. Therefore I would like to force user to create following sort of matr

[R] List of all times zones in R

Hi all, in R I have Sys.timezone() function to get the current working Time zone. However I want to have a vector to get the list of all available time zones, like say, LETTERS gives me all letters. Is there any function like that? Thanks in advance, __

[R] A question on Statistics

I am not a pure Statistics background and therefore please forgive me if this question (which is not R related either) is too trivial. In many Statistics literature I find following statement: "restrictions in different coefficients matrices have to be imposed to ensure uniqueness of the parametri

[R] Fetching data

Dear all R users, I am wondering is there any procedure exists on R to fetch data directly from "http://www.ncdex.com/Market_Data/Spot_price.aspx"; and save it in some time series object, without filling any field in that website. Can somebody point me whether it is possible? Thanks and regards,