similar to: Newbie hung up with matrices

Perhaps I am making this too hard, but how does one regress y(t) on a constant, x(t-1) and y(t-1)? I've tried the manuals and until I get Dalgaard's book (just ordered on Amazon), I am stuck! Thanks to all in advance for your patience and consideration.

Thanks to all for your previous help. I see now that my problem is converting my .csv file of data into a matrix. My example is a (3x3) matrix with a "header" row (that doesn't contain numerics). Thanks again for your time and gracious consideration.

Hello- I am trying to download packages from CRAN to my Window-based system. I downloaded the most recent version of Perl, as instructed in the Install Manual and the "car" package, just as a trial. Where should they "reside" within my computer: the unzipped Perl I have placed at ...R/rw1070; the "car" package I unzipped and placed at ...R/rw1070/library. Is this

Hi all- Thanks in advance for your help. I have a 2275x1 table of residuals from an lm() regression. I want to analyze this further in Excel. I tried using: df<-resid(object) write.table(df) and this yields a nice looking output in R, but because of screen constraints, I seem to loose data "out-the-top" of the Console -- which doesn't bother me, as long as I can see it

Hi all, I'm learning R. I'm used to Matlab and am having the following issue: I define a column vector and matrix and then multiply them. The result is not what I expect: v2 <- c(0,1,0) M <- cbind(c(1,4,7),c(2,5,8),c(3,6,9)) M*v2 [,1] [,2] [,3] [1,] 0 0 0 [2,] 4 5 6 [3,] 0 0 0 I expect the result to be a column, specifically the 2nd column of M.

Hello all- I have two time series, Index1stdiff and Comps1stdiff. I regressed the first on the second and R returned the summary stats I expected. Then I looked at and plotted the residuals. I then wanted to assess autocorrelation characteristics and tried to run a Durbin-Watson using: library(lmtest) dwtest(formula=Index1stdiff~Comps1stdiff,alternative=c("greater")) I am

In my code, I calculate the maximum values with 2 factors using maxr=with(arrdf, tapply(rate,list(weekday,quarter), max, na.rm=T)) and I want to write out the file so that Excel can read it. I used write.table(maxr, fname, sep=",", col.names=TRUE, row.names=TRUE, quote=TRUE, na="0") which works, and yields something like

Hello useRs, I'd like to perform a moving average on the dataset, xx. I've tried combining the functions Reduce and rollmean but it didn't work. > r <- function(n) rollmean(n, 2) # where 2 = averaging interval > output < - Reduce("r", x) Error in f(init, x[[i]]) : unused argument(s) (x[[i]]) Is there anything wrong with the code in the first place? where

Hello! I'd like to set up dovecot to keep namespaces in database, keep more than one namespace per user. I try to create the simplest rule (even without tuple in db table) to get new namespace, unfortunately it doesn't work. My user_query is: SELECT '/dane/domeny/%d/mail/%n/' as home, dovecot_typ_skrzynki ||':'|| '/dane/domeny/%d/mail/%n/' ||'.'||

I have an R file R_test.R saved in C:\R_test folder. The R_test.R looks like this: setwd("C:/R_test") rnorm(100) write(rnorm(100),"data.txt") q(save="no", runLast = F) Next I would like use an Excel VBA/macro Shell() function to call R and execute R_test.R file. The syntax is *Shell(pathname*[*,windowstyle*]*)* I wrote an Excel macro RunRcode like this: Sub

Hi, I am running a test to call an R script with in excel using VBA. My VBA code is shown bellow. The middle section of this mail also includes the content of my Rscript. The bottom part shows the error message form the R console. It seems that Excel is opening the R console without any problems. The problem I am seeing is that Rinterface.RRun instruction is interpreting the "\T"

Hi, I often work with R by writing long(ish) Excel-VBA macros interspersed with calls to R via RExcel. A typical example of this would be: Sub VBAMacro() 'fetch some data from an excel sheet 'do some basic stuff on said data 'transfer data from vba to R 'run some R statements 'get data back to vba 'show results on the excel sheet 'clean R by deleting all vars

Dear all, I?m doing some simulation studies in order to compare the estimates (and estimated standard deviations) from the ARMA(2,1) Model with an estimator that I?ve constructed. For carrying out the simulations I created a VBA project within Excel. Now, I?m using the RExcel tool for running the R commands in the VBA project. I run 2500 simulation using the ?arima? function from R and it worked!

Buenos días: ¿Hay alguna forma de conectar VBA de Excel con R, de forma que desde Excel se puedan cursar instrucciones de R?, ¿ y V.Basic con R? Gracias anticipadas. Saludos [[alternative HTML version deleted]]

I wrote a R script say called computeCovarMatrix.R and i want to call and run this piece from Excel visual basic. does anyone know how to do that? thanks, KZ [[alternative HTML version deleted]]

Muchas gracias, Sergio. Saludos cordiales. Eduardo Freyre -----Mensaje original----- De: miguel.angel.rodriguez.muinos en sergas.es [mailto:miguel.angel.rodriguez.muinos en sergas.es] Enviado el: viernes, 12 de julio de 2013 12:39 Para: efreyre en movistar.es; r-help-es en r-project.org Asunto: RE: [R-es] Conexion excel vba con R y VBasic con R Hola Eduardo. Lo que buscas lo puedes

I'm trying to test if a correlation matrix is positive semidefinite. My understanding is that a matrix is positive semidefinite if it is Hermitian and all its eigenvalues are positive. The values in my correlation matrix are real and the layout means that it is symmetric. This seems to satisfy the Hermitian criterion so I figure that my real challenge is to check if the eigenvalues are all

I'm using R-Excel's macro mode to make an R based Excel tool for inventory management. It's quite a lot of R-code which I made in R at first and now I am trying to transform it into excel. The R code is a simulation of a random path x times, put into matrices and then doing some transformations on it. I pasted the R code on a seperate sheet in my Excel file, which by means of VBA I

http://dovecot.org/test/ I think I found and fixed the last bug that was giving me problems. Now that Dovecot has been successfully working for a few hours, time for a new test release :) This release has major changes, so there might still be some bugs left. Be careful. If you're upgrading from previous 1.0-test release, you must delete all existing dovecot.index.log files or you will get

Hi I want to implement Egarch (1,1) with t distribution model using RExcel and VBA. May I know the syntax. Following is the code that I 'm using. rinterface.RRun "spec=ugarchspec(variance.model=list(model=(eGARCH),garchOrder=c(1,1)), mean.model=list(armaOrder=c(1,1), arfima=FALSE), distribution.model=(std))" rinterface.RRun "fit = ugarchfit(Data = b, spec = spec)"