similar to: Error in -class : invalid argument to unary operator

Hi Sacha, On second thought, perhaps this is more the direction that you want ... X2 = cbind(X_train,y_train) colnames(X2)[3] = "y" regr2<-randomForest(y~x1+x2, data=X2,maxnodes=10, ntree=10) regr regr2 #Make prediction predictions= predict(regr, X_test) predictions2= predict(regr2, X_test) HTH, Eric On Tue, May 9, 2023 at 6:40?AM Eric Berger <ericjberger at gmail.com>

Dear R-experts, Here below a toy example with some error messages, especially at the end of the code (Tuning the parameters). Your help to correct my R code would be highly appreciated. ####################################### #libraries library(lattice) library(ggplot2) library(caret) library(randomForest) ?? #Data

Hi, This is really more a stats question than a R one, but.... Does anyone have any familiarity with using the mean prediction squared error scaled by the variance of the response, as a 'scale free' criterion for evaluating different regression algorithms. E.g. Generate X_train, Y_train, X_test, Y_test from true f. X_test/Y_test are generated without noise, maybe? Use X_train, Y_train

At Sun, 25 Aug 2019 19:52:59 +0200 CentOS mailing list <centos at centos.org> wrote: > > I am looking for software to make slideshows/presentations on CentOS, > incorporating photos, videos and text (possibly also music) allowing for > transition effects etc. I'd like to be able to drag and drop/rearrange > photos etc. from different folders into a timeline and

On 08/25/2019 09:59 PM, Robert Heller wrote: > At Sun, 25 Aug 2019 19:52:59 +0200 CentOS mailing list <centos at centos.org> wrote: > >> I am looking for software to make slideshows/presentations on CentOS, >> incorporating photos, videos and text (possibly also music) allowing for >> transition effects etc. I'd like to be able to drag and drop/rearrange >>

Hello all, I am relatively new to R, but enjoying it very much. I am hoping that someone on this list can help me with an issue I am having. I am having issues with iterations over nleqslv, in that the solver does not appear to clean up memory used in previous iterations. I believe I've isolated the/my issue in a small sample of code: library(nleqslv) cons_ext_test <- function(x){

I am looking for software to make slideshows/presentations on CentOS, incorporating photos, videos and text (possibly also music) allowing for transition effects etc. I'd like to be able to drag and drop/rearrange photos etc. from different folders into a timeline and eventually end up with something I can show. Ideally without having to make copies of photos and store them in a folder

Hello, I tried to run a program written in Delphi in wine and it ran quite perfectly, but sadly there was one important detail that made using it impossible... It seems that wine has a problem with the text inputs (edits). They are "string" datatypes (8 bit ansi string), and not null terminated. The problem was showing itself e.g. at the login form of the program. The password I

Hi, All, I have a class 1:10, it seems if I use netfilter mark as classifier, then the class will be refered as classid 1:10, however, if I use u32 as classifer, then the class should be refered as flowid 1:10, is it right? Thanks in advance, James

Hi, As a number of people suggested, I downloaded the "e071" package and am using the function "svm" for my classification problem. I now want to take the classifier outside the R environment, for example to a C program, and use it. I know that the classifer is of the form WTX+b where W is defined by the support vectors. I did not see that W vector is output from svm. If am

After using Wine without any significant hitches for over a year, I've just come across one. Every time I load any application (even winecfg), it takes between thirty seconds to one minute for it to load. During this time, normal functions take forever or don't work at all (selecting folders, opening a file, etc.). Sometimes it will load and work just fine, but often the program continues

A question for the WineLib guru's :) I am using the wine-20011108 build with Mandrake 8.0 and with this version of wine clean compiled and installed I can run several windows programs very successfully :). Then I use winemaker to create a WineLib 'so' file and the compile and link again runs clean. But when I run the resulting 'so' file using this command line: $