Description Usage Arguments Format Value
Initialize a 'RF' object.
1 2 3 |
x |
A data frame of all training predictors. |
y |
A vector of all training responses. |
se |
A list containing the standard deviation for each y value. This is for example useful, if y is aggregated data from repreated measurements or if the measurement is in some sense noisy. |
ntree |
The number of trees to grow in the forest. The default value is 500. |
replace |
An indicator of whether sampling of training data is with replacement. The default value is TRUE. |
sampsize |
The size of total samples to draw for the training data. If sampling with replacement, the default value is the length of the training data. If samplying without replacement, the default value is two-third of the length of the training data. |
mtry |
The number of variables randomly selected at each split point. The default value is set to be one third of total number of features of the training data. |
nodesize |
The minimum observations contained in terminal nodes. The default value is 5. |
nthread |
The number of threads to use in parallel computing. The default value is 1. |
splitrule |
A string to specify how to find the best split among all candidate feature values. The current version only supports 'variance' which minimizes the overall MSE after splitting. The default value is 'variance'. |
avgfunc |
An averaging function to average observations in the node. The function is used for prediction. The input of this function should be a dataframe of predictors 'x' and a vector of outcomes 'y'. The output is a scalar. The default function is to take the mean of vector 'y'. |
An object of class NULL
of length 0.
A 'RF' object.
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