search for: holdouts

Max and List, Could you advise me if I am using the proper caret syntax to carry out leave-one-out cross validation. In the example below, I use example data from the rda package. I use caret to tune over a grid and select an optimal value. I think I am then using the optimal selection for prediction. So there are two rounds of resampling with the first one taken care of by caret's train

Good day, I'm using a VAR model to forecast sales with some extra variables (google trends data). I have divided my dataset into a trainingset (weekly sales + vars in 2006 and 2007) and a holdout set (2008). It is unclear to me how I should predict the out-of-sample data, because using the predict() function in the vars package seems to estimate my google trends vars as well. However, I want

Hello dear R Users, I am working on a dataset of 928 Enterprises, of which are observed 12 different characters. I need to randomly sample, without repetition, 70% of the entreprises, to create a testing set, and let the other 30% of the enterprises be a validating set (holdout validation, I think that is). How do I do that? Of course all the characters of each row must remain together. Also, I

...ge error. I loaded the MASS package and created a model like so: >train <- mod1[mod1$rand < 1.7,] >classify <- mod1[mod1$rand >= 1.7,] >lda_res <- lda(over_win ~ t1_scrd_a + t1_alwd_a, data=train, CV=TRUE) That works, and all is well until I try to do a prediction for the holdouts: >lda_pred <- predict(lda_res, classify)$class Error in predict(lda_res, classify) : no applicable method for "predict" If I try predict.lda specifically I get > lda_pred <- predict.lda(lda_res, classify)$class Error: could not find function "predict.lda" > pred...

Dear Random Forests gurus, I have a question about R^2 provided by randomForest (for regression). I don't succeed in finding this information. In the help file for randomForest under "Value" it says: rsq: (regression only) - "pseudo R-squared'': 1 - mse / Var(y). Could someone please explain in somewhat more detail how exactly R^2 is calculated? Is "mse"

Dear useRs: It's been some time since we last sent out an announcement, so this one will cover more than just the last update. The latest release of randomForestSRC is now available on CRAN at: https://CRAN.R-project.org/package=randomForestSRC The GitHub repository, through which we prefer to receive bug reports, is at: https://github.com/kogalur/randomForestSRC If you do find issues,

Dear useRs: It's been some time since we last sent out an announcement, so this one will cover more than just the last update. The latest release of randomForestSRC is now available on CRAN at: https://CRAN.R-project.org/package=randomForestSRC The GitHub repository, through which we prefer to receive bug reports, is at: https://github.com/kogalur/randomForestSRC If you do find issues,

hello, I have a question about making n step ahead forecasts in cases where test and validation sets are availiable. For instance, I would like to make one step ahead forecasts on the WWWusage data so I hold out the last 10 observations as the validation set and fit an ARIMA model on the first 90 observations. I then use a for loop to sequentially add 9 of the holdout observations to make 1

Got a client that usually uses Outlook I think 2010. This person tends to move their e-mails to certain folers. On Thunderbird, the move shows. Not on Outlook. Any explanation? -- Member - Liberal International This is doctor@@nl2k.ab.ca Ici doctor@@nl2k.ab.ca Yahweh, Queen & country!Never Satan President Republic!Beware AntiChrist rising! https://www.empire.kred/ROOTNK?t=94a1f39b A

Hi. I'm embarking on my first attempt at creating my own panel function for lattice graphics, and despite all of my online research and pouring through the documentation, I cannot figure out how to solve my particular problem. Hopefully, a generous fellow R user can help. I have some data that is split into two groups: some "actual" data, and some simulated data,

On 06 Jul 2020, at 15:48, The Doctor <doctor at doctor.nl2k.ab.ca> wrote: > Got a client that usually uses Outlook I think 2010. This person tends to move > their e-mails to certain folers. On Thunderbird, the move shows. > Not on Outlook. > > Any explanation? Since the move works fine in Thunderbrd (and I assume any other client will see the same), the problem is with

> From: Wensui Liu <liuwensui at gmail.com> > Just curious how xlispstat is used in the industry and what's it strengthen > compared with other computing languages such as R or matlab? Almost not at all, though there are a few holdouts. On a related note, I've been doing some interesting things with a branch of LispStat for CommonLisp. It'll be more interesting when R gets embedded (now it's back on topic). Rumor has it that R is embedded within SBCL, which makes for an interesting distributed computing environment...

Hi listers, I'm a 1.4 holdout who uses mostly Suse platforms. I bit the bullet and installed a Centos box to get Lumenvox up and running, but now see this "new" offering of Vestec that supports OpenSuse and Windows in addition to the Platforms supported by Lumenvox. Anybody out there working with Vestec that can give me a heads up on how it works or doesn't?

Hi! I am working on scorecard model and I have arrived at the regression equation. I have used logistic regression using R. My question is how do I validate this model? I do have hold out sample of 5000 customers. Please guide me. Problem is I had never used Logistic regression earlier neither I am used to credit scoring models. Thanks in advance Maithili

On Mon, Sep 04, 2023 at 06:59:15PM +0000, Tage Johansson wrote: > > > > + // can be both readable and writable, but we survive just fine > > > + // if we only see one direction even when both are available. > > > + poll.registry().register( > > > + &mut SourceFd(&fd), > > > + Token(0), > >

CRAN (and crantastic) updates this week New packages ------------ * bdoc (1.0) Michael Anderson http://crantastic.org/packages/bdoc This package contains a function that will classify DNA barcodes as well as a few test and reference data sets. * bdsmatrix (1.0) Terry Therneau http://crantastic.org/packages/bdsmatrix This is a special case of sparse matrices, used by coxme and

Must have bolluxed something up in the compile environment - that or http://www.mindrot.org/openssh_snap/openssh-SNAP-20140828.tar.gz had a configure tweak that fixed it. All systems tested now build and pass all tests. That said - the stupid race condition in that one test is cropping up sporadically still - I think it's related to the load (or lack thereof) on the VM host. With, of

Hi All, I am trying to learn Neural Networks. I found that R has packages which can help build Neural Nets - the popular one being AMORE package. Is there any book / resource available which guides us in this subject using the AMORE package? Any help will be much appreciated. Thanks, Indrajit

Hello fans of the auto keyword! We now have a policy on how LLVM toolchains get updated <https://reviews.llvm.org/rL351765>! Let’s put that policy to good use, and talk about how we’ll move all monorepo projects past C++11. Previous Discussions LLVM dev meeting 2018 BoF "Migrating to C++14, and beyond! <http://llvm.org/devmtg/2018-10/talk-abstracts.html#bof3>" A Short