Displaying 5 results from an estimated 5 matches for "besttun".
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besttune
2010 Apr 06
1
Caret package and lasso
...n matrix
X<-matrix(rnorm(50*100),nrow=50)
y<-rnorm(50*1)
# Applying caret package
con<-trainControl(method="cv",number=10)
data<-NULL
data<- train(X,y, "lasso", metric="RMSE",tuneLength = 10, trControl = con)
coefs<-predict(data$finalModel,s=data$bestTune$.fraction, type
="coefficients", mode ="fraction")$coef
coefs
*This is the output which I got :*
you can see some of the predictors are missing like V4, V6, V7
V1 V2 V3 V5 V8
V9 V10 V11 V13 V14...
2011 Jan 24
5
Train error:: subscript out of bonds
...s.factor(trainset[,ncol(trainset)]),"svmpoly",trControl
= trainControl((method = "cv"),10,verboseIter = F),tuneLength=3)
pred<-predict(fit1,test_t)
t_train[[i]]<-table(predicted=pred,observed=testset[,ncol(testset)])
tune_result[[i]]<-fit1$results;
tune_best<-fit1$bestTune;
scale1[i]<-tune_best[[3]]
degree[i]<-tune_best[[2]]
c1[i]<-tune_best[[1]]
}
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2023 May 09
1
RandomForest tuning the parameters
...tree=c(100, 200,
> 300))
> > set.seed(seed)
> >
> > # Train the model
> > rf_gridsearch <- train(x=X_train_, y=y_train_, method=customRF,
> metric=metric, tuneGrid=tunegrid, trControl=control)
> >
> > plot(rf_gridsearch)
> >
> > rf_gridsearch$bestTune
> >
> > #################################################
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read th...
2023 May 08
1
RandomForest tuning the parameters
...utline the grid of parameters
tunegrid <- expand.grid(.maxnodes=c(10,20,30,50), .ntree=c(100, 200, 300))
set.seed(seed)
?
# Train the model
rf_gridsearch <- train(x=X_train_, y=y_train_, method=customRF, metric=metric, tuneGrid=tunegrid, trControl=control)
?
plot(rf_gridsearch)
rf_gridsearch$bestTune
#################################################
2013 Nov 15
1
Inconsistent results between caret+kernlab versions
I'm using caret to assess classifier performance (and it's great!). However, I've found that my results differ between R2.* and R3.* - reported accuracies are reduced dramatically. I suspect that a code change to kernlab ksvm may be responsible (see version 5.16-24 here: http://cran.r-project.org/web/packages/caret/news.html). I get very different results between caret_5.15-61 +