By default bootstrap=True, so a bootstrap sample is used.
That means the number of samples is the same as the original number of samples, but only about 2/3 of the dataset is used, the rest are duplicates. For efficiency, the samples are actually represented using sample weights.

On 03/11/2015 11:22 AM, Pagliari, Roberto wrote:
How many samples does a single tree of a random use? Or does it use all samples?




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