similar to: lagged variables

Hi, I'm struggling to understand the documentation. ?lag.zoo x - a "zoo" object. k, lag - the number of lags (in units of observations). Note the sign of k behaves as in lag. differences - an integer indicating the order of the difference. What does the above line actually mean? I've tried a few settings on sample data but can't figure out what it is doing. x <-

Hi, i need a little help! i must create a dummy variable to insert as external regressor in the variance equation of a garch model; this dummy is referred to the negative sign of returns of an asset, so it has to be 1 when returns are negative and 0 when they are positive, and in my model the dummy is multiplied by another time series, the daily range. (have i explained well?!) thank's a lot

Hi guys, does anyone know if there is the possibility to fit a gamma distribution using ugarch?honestly i don't know if maybe is possible to fix some parameters that reduce ghyp or ged in a gamma distribution.. thanks a lot sara -- View this message in context: http://r.789695.n4.nabble.com/gamma-distribution-in-rugarch-package-tp4637893.html Sent from the R help mailing list archive at

Hello All! I am training to train a NN with function train() after splitting data with the function splitForTrainingAndTest(). The split is ok (checked it), but when I get a try on training I get this message: Error in UseMethod("train") : no applicable method for 'train' applied to an object of class "c('double', 'numeric')" The input data are

Buenas tardes, Solicito por favor ayuda con este error: Error: OutOfMemoryError (Java): Java heap space Estoy trabajando con matrices de grandes dimensiones y el programa no logra completarse porque dice le falta memoria. Gracias [unnamed] Sara Suarez Zapata Estudiante en práctica - Unidad Gestion Bolsa de Energia. Tel: (574) 380 61 18 Correo: sara.suarez en

Hi! We have run a linear regression model with 3 explanatory variables and get the output below. Does anyone know what type of test the anova model below does and why we get so different result in terms of significant variables by the two tables? Thanks! /Sara > summary(model) Call: lm(formula = log(HOBU) ~ Vole1 + Volelag + Year) Residuals: Min 1Q Median 3Q Max

Hello! Could anyone please tell me how should I include R in a text section for References? Regards, Sara Mouro [[alternative HTML version deleted]]

Actually what I meant in my original loop, that there is a dependency between every two consecutive iterations. So, how the loop vectorizer says 'we can vectorize this loop'? for(int k=20;k<50;k++) dataY[k] = dataY[k-1]; From: Henrique Santos [mailto:henrique.nazare.santos at gmail.com] Sent: Sunday, November 03, 2013 4:28 PM To: Sara Elshobaky Cc: <llvmdev at

Dear all I can not understand how to install the package lpsolve_1.1.9.zip I have read the FAQ and the help pages carefully, but it still not clear for me. I have tried the following (and obtained the respective error messages): >install.packages("c:/ProgramFiles/R/rw2011/library/lpSolve_1.1.9",destdir=" c:/ProgramFiles/R/rw2011/library/lpSolve") Mensagem de aviso:

Dear all, I have one Model (M3) fitted using the lme package, and I have checked the correlation structure of within-group errors using plot(ACF (M3,maxLag=10),alpha=0.05) But now I am not sure how to interpret this plot for the empirical autocorrelation function. The problem is that I am used to see/interpret diagrams in which all the autocorrelation Lags, except lag-1, are inside the

Hello, I was trying to trace the Loop vectorizer of the LLVM, I wrote a simple loop with a clear dependency. But found that the debug shows that 'we can vectorize this loop' Here you are my loop with dependency: for(int k=20;k<50;k++) dataY[k] = dataY[k-1]; And the debug prints: LV: Checking a loop in "main" LV: Found a loop: for.body4 LV: Found an

Hello, I'm using MCJIT to run some loops on my ARM processor. I was trying to perform some runtime optimizations on some function, and this requires recompiling the function at runtime. I know that this feature is not available yet in MCJIT , and to modify a function I have to create a new module with the newly optimized code. My questions are: - The newly created module can be

Hi Sarah, the loop vectorizer runs not on the C code but on LLVM IR this c code was lowered to. Before the loop vectorizer runs many other optimization change the shape of this IR. You can see in the LLVM IR you referenced below, a preceding LLVM IR transformation has change your loop from: > for(int k=20;k<50;k++) > dataY[k] = dataY[k-1]; to > int a = d[19]; >

Dear All, I have to enter many lines of data in the same object. I usually use copy-paste to transfer data from an Word file to R. But, for large lines of data, R gets "confused" and gives an error message, i.e. it breaks one line somewhere, and lines get no meaning at all. Some times I solve that problem adding "enters" and making each line shorter, before I do

Lets say I have the following data frame. df = data.frame(word = c("David", "James", "Sara", "Jamie", "Jon")) df I was trying to place brackets , [ ] , around each string. I'll be exporting it with write.table and quotes=FALSE, so it will eventually look like: [David] [James] [Sara] .... Can anyone help with this task? I'd like to

So, what is the use of the profile passes in LLVM? Also, does llvm detect hot blocks of code for recompilation? On Mon, Oct 7, 2013 at 4:44 PM, Amara Emerson <amara.emerson at arm.com> wrote: > No, the JIT does not do any profile guided optimizations for any > architecture. It just uses the static compilation components before loading > the object into memory and running its own

Hello, Please, I need more information on the runtime optimizer used in the LLVM JIT. - Where can I find it in the LLVM source code? - Are those runtime optimizations done on the LLVM representation code or on the machine code? Sara -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hei, is it possible to create from R a series of files with unique(random) names? I have tryed with file.create and dir.create but did not manage to do it. Thanks a lot for help Sara [[alternative HTML version deleted]]

Hi I am trying to plot two simple graphs with a grid in background. The axis and grid appears in correct position, but the actual data are not there.... Can somebody provide me a hint what is missing? The code is: pln <- read.table(file="PLN.txt", header=TRUE, dec=",") par(mfrow=c(1,2)) plot(pln[,1], type="l", lwd="2", ylab="EUR/PLN",

Dear all, How can I explian and solve the error message: "margins too large" which appears when I do something like: KK <- alltypes(SpatData, "K") plot.fasp(KK) Hope someone can please help me on this. Regards, Sara Mouro [[alternative HTML version deleted]]