[R] Time Series with External Regressors in R Problems with XReg

Hello everyone, Hope you all are doing great! I have been fitting arima models and performing forecasts pretty straightforwardly in R. However, I wanted to add a couple of regressors to the arima model to see if it could improve the accuracy of the forecasts but have had a hard time trying to do

[R] Updating R 2.15.0 to 2.15.2

Dear R users, I hope you all are doing great. Is there a way to automatically upgrade my R 2.15.0 to the new R 2.15.2 release instead of having to reinstall the new release? Any information regarding this would be greatly appreciated. Best regards, Paul -- View this message in context: htt

[R] Odd Results when using R's auto.arima function

Good morning everyone, I have attached an Excel file that contains a macro from which I call and use R's auto.arima function to generate forecasts. The program runs perfectly and it gets me the results; however, those results are pretty unusual. I also tried using the auto.arima function directly

[R] Menu Options Disabled in RExcel

Dear Richard, I know I should be posting this question on the list (I´ve already submited the question on RExcel´s list and still wating for approval) but I am going to send you the question here also, Please take a look at the document I am attaching, as you can see the Menu Options in RExcel ar

[R] Further Problems with RExcel - OLE action message

Hello everyone, There is another message that is popping up in RExcel that goes: Microsoft Excel is waiting for another application to complete an OLE action. What does this mean? I have attached a document here that shows the message in detail: http://r.789695.n4.nabble.com/file/n4634542/OLE_lin

[R] Passing Arima Parameters from Excel to R

Hello everyone, I would like to have an Excel SpreadSheet with a Macro that allows me to select between the following Models (in the form of a combobox): AR, MA, ARMA and ARIMA. And depending on the model chosen, give Excel the parameters (for p, q, d and P, D, Q). I want to find a way to connect

[R] Problems Exporting R Output to an xls file need help

Hello R users, I want to export to an xls or .csv some predictions I produced with the auto.arima and forecast functions. A detail of all my work is presented below. I loaded a package called dataframes2xls and tried to use the function write.xls without any success. Can anybody help me figure

[R] How to Export an R outcome to an Excel Spreadshee​t

Hello R community, I basically created a normal distribution with mean 2500 and standard deviation = 450 with a sample of size 50 and assigned that to a variable named genvar2 with the following command: genvar2<-rnorm(mean=2500, sd=450, n=50) Now, the output of genvar2 generates de fol

[R] Using the R predict function to forecast a model fit with auto.arima function

Hello R users, Hope everyone is doing great. I have a dataset that is in .csv format and consists of two columns: one named Period (which contains dates in the format _mm) and goes from 1995_10 to 2007_09 and the second column named pcumsdry which is a volumetric measure and has been formatt