similar to: C50 package in R

Hi, I am using some classifiers in RWeka packages and met a couple problems. (1) J48 implements C45 classifier, the C45 should be able to handle missing values in both training set and test set. But I found the J48 classifier can not be evaluated on test set with missing values--it just ignore them. (2) The ensemble classifiers in RWeka such as bagging and boosting: there is a

Hi all, I have a package that is specific to a task I was repetitively using a few years ago. I now needed to run it again with new data. However I am told it was built with an older version or R and will not work. How can I tweak the package so it will run on 11.1? It was a one-off product and has not been maintained. Is there a way to "unpackage" it and repackage it to work? I

Good afternoon. I would like to know if there is any function in R to do LOOCV with these classifiers: 1)SVM 2)Neural Networks 3)C4.5 ( J48) 4)KNN Thanks a lot! [[alternative HTML version deleted]]

Hello, I would like to test some learning algorithms (C5.0, or C4.5) using decision trees or neural network. I didn't find anything in the R documentation for functions to apply on datasets (well, English is not my mother tongue and I have some problems to understand some functions descriptions). Does anybody know where I can find anything about that ? Thank you very much, Thomas

I am familiar with the rpart and tree packages for classification and regression trees. However, quite a bit of the research in the transportation community relating to decision trees uses the C4.5 family of algorithms by Quinlan. Are there any plans to make a C4.5 (or a derivative of it) available to R? If not, then I might use the WEKA Java package ( http://www.cs.waikato.ac.nz/ml/weka) that

Hi, Being a novice this is my first usage of R. I am trying to use rpart for building a decision tree in R. And I have the following dataframe Outlook Temp Humidity Windy Class Sunny 75 70 Yes Play Sunny 80 90 Yes Don't Play Sunny 85 85 No Don't Play Sunny 72 95 No Don't Play Sunny 69 70 No Play Overcast 72 90 Yes Play Overcast 83 78 No Play Overcast 64 65 Yes Play Overcast 81 75

Hola, ¿cómo están? Soy estudiante de Ing. en Sistemas de Información y estoy cursando la materia Tecnologías para la Explotación de Datos. Me he decidido a usar R para hacer DM. Estoy recién comenzando con ambos. El asunto es que no he encontrado la implementación en R de uno de los algoritmos que dimos para árboles de decisión, ID3. Ya revisé varios de los paquetes para DM

Greetings all. I just enabled all repos on my system, to enable me to find a particular package. This is the first time I have noticed all the Centos repos < 5.6 being listed. Is this a new feature, to include all repos pre 5.6 now? Here's the output of the aforementioned yum command - sorry it's a little bit long: [root at karsites ~]# yum --enablerepo '*' --disablerepo

Here is my problem, 100 decision trees were built(similar to random forest) and I want to replace some of them by new trees. How can I define a tree array including 100 trees, i.e. t[100], and every t[n] is an "C5.0" object, such that when a new tree comes, i can do n<-10 t[n]<-C5.0(...) -- View this message in context:

My Mail StationeryIs it possible to have interactive graphic display in R just like S-Plus? ______________________ Indrajit SenGupta Department Of Statistics St. Xavier's College Calcutta University indra_calisto at yahoo.com indrajitsg at vsnl.net -------------- next part -------------- An HTML attachment was scrubbed... URL:

In the file MkRules.local.in, I see the line: USE_ATLAS = NO which I believe needs to be changed to YES. But how do I specify the BLAS file *libopenblas_haswell-r0.2.20.a *and its location? Regards, Indrajit On Tue, Feb 13, 2018 at 6:41 PM, Indrajit Sen Gupta <indrajitsg at gmail.com> wrote: > I was able to compile the R from the github by running build-r-devel.bat! > > Now need

On Tue, Feb 13, 2018 at 12:22 PM, Indrajit Sen Gupta <indrajitsg at gmail.com> wrote: > Hi Avraham, > > I tried with the patched version. The same error message. > > gcc -std=gnu99 -m64 -shared -s -mwindows -o R.dll R.def console.o dynload.o > editor.o embeddedR.o extra.o malloc.o opt.o pager.o preferences.o psignal.o > rhome.o rt_complete.o rui.o run.o shext.o

Hello, My question is about the algorithm used behind decision tree package rpart. It is not clear in the help if the algorithm used is ID3 or C4.5. Someone has any idea? Regards. Sandro. -- View this message in context: http://www.nabble.com/rpart%3A-ID3-or-C4.5--tp19269303p19269303.html Sent from the R devel mailing list archive at Nabble.com.

Greetings, Does anyone know if the C4.5 algorithm is already implemented in R? If yes, please let me know the package. Thanks. -- View this message in context: http://www.nabble.com/C4.5-implementation-in-R-tp23736785p23736785.html Sent from the R help mailing list archive at Nabble.com.

Hello everybody I'm having some difficulties to design the decision tree algorithm J48. I am using the following code and when I run it gives me the following message plot(m1) Error in plot.Weka_tree(m1) : Plotting of trees with multi-way splits is currently not implemented. #The code library(RWeka) library(randomForest) library(party) if(require(mlbench, quietly = TRUE) &&

Dear All, I am having a bit of problem using the DBI and RMySQL package. I have already installed DBI but now I want to connect to MySQL. So how do I do it. The CRAN package repository does not have RMySQL windows binary to install from? Regards, Indrajit Sen Gupta Business Analyst Mu Sigma Business Solutions Pvt Ltd #21/1-1, Nawab Towers Cunningham Road Bangalore 560 052, India Tel: +91 80

Dear All,I encountered a problem when I use RWeka for prediction. Specifically, I use the following: res=J48(X1~.,data=mydata); predict(res), #it worked fine but when I tried to use a different data set, i.e. predict(res,newdata=mynewdata); all the predictions I get is 0, which apparently is problematic. What is weird is, if I use the old data, but use the newdata option, i.e.

Hi Avraham, What a coincidence, I have been following this post of yours: https://www.avrahamadler.com/2013/10/24/an-openblas-based-rblas-for-windows-64-step-by-step/ Looks like this post is slightly older than what you have shared previously. It is strange that you did not get the attachments. I am pasting the contents of the MkRules.local here:

My Mail StationeryDear R- users, I have a small question on R. The other day I was using R when I decided to quit and when I was prompted with the question whether I would like to save the workspace image, I accidently pressed yes and after that every time start R the previous work space gets loaded. How do I avoid this? Thanks in advance, ______________________ Indrajit SenGupta Department Of

Quer?a saber si existe alguna funci?n de R para realizar el algoritmo CHAID de ?rbol de clasificaci?n, existen de J48 por ejemplo pero no encuentro nada de este algor?tmo. Muchas gracias y un cordial saludo, Juan -- ========================================================= Juan Antonio Gil Pascual Prof. Titular de M?todos de Investigaci?n en Educaci?n correo: jgil at edu.uned.es web: