Top "Random-forest" questions

In learning algorithms and statistical classification, a random forest is an ensemble classifier that consists in many decision trees.

random forest tuning - tree depth and number of trees

I have basic question about tuning a random forest classifier. Is there any relation between the number of trees and …

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Do I need to normalize (or scale) data for randomForest (R package)?

I am doing regression task - do I need to normalize (or scale) data for randomForest (R package)? And is …

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Using the predict_proba() function of RandomForestClassifier in the safe and right way

I'm using Scikit-learn to apply machine learning algorithm on my data sets. Sometimes I need to have the probabilities of …

python machine-learning scikit-learn random-forest
Plot trees for a Random Forest in Python with Scikit-Learn

I want to plot a decision tree of a random forest. So, i create the following code: clf = RandomForestClassifier(n_…

python tree scikit-learn random-forest pydot
How to perform random forest/cross validation in R

I'm unable to find a way of performing cross validation on a regression random forest model that I'm trying to …

r random-forest cross-validation
Random forest output interpretation

I have run a random forest for my data and got the output in the form of a matrix. What …

r profiling output random-forest
Got continuous is not supported error in RandomForestRegressor

I'm just trying to do a simple RandomForestRegressor example. But while testing the accuracy I get this error /Users/noppanit/…

python pandas dataframe scikit-learn random-forest
R Random Forests Variable Importance

I am trying to use the random forests package for classification in R. The Variable Importance Measures listed are: mean …

r statistics data-mining random-forest
Can sklearn random forest directly handle categorical features?

Say I have a categorical feature, color, which takes the values ['red', 'blue', 'green', 'orange'], and I want to use …

python scikit-learn random-forest one-hot-encoding
How to compute ROC and AUC under ROC after training using caret in R?

I have used caret package's train function with 10-fold cross validation. I also have got class probabilities for predicted classes …

r random-forest r-caret roc