Code Regression Trees Model

emilhedevang / power-curves

Wind turbine power curve analysis

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Code Regression Trees Model #7

Closed AndyClifton closed 11 years ago

AndyClifton commented 11 years ago

Have coded up a randomForest implementation using the Breiman code (http://cran.r-project.org/web/packages/randomForest/index.html).

Results are not great; there seems to be a fairly big overprediction at lower wind speeds and corresponding underprediction around rated speed. I am wondering if the categorical variable of the Turbine operating region is causing trouble...

AndyClifton commented 11 years ago

Seems to work now. Added mtry =2 in the call to randomForest in TrainRegressionTree.R so that there is a random choice between more than one variable at any one node when training the regression tree.