python - Size of sample in Random Forest Regression -

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if understand correctly, when random forest estimators calculated bootstrapping applied, means tree(i) built using data sample(i), chosen replacement. want know size of sample sklearn randomforestregressor uses.

the thing see close:

bootstrap : boolean, optional (default=true)     whether bootstrap samples used when building trees.

but there no way specify size or proportion of sample size, nor tell me default sample size.

i feel there should way @ least know default sample size is, missing?

the sample size bootstrap number of samples.

you not missing anything, same question asked on mailing list randomforestclassifier:

the bootstrap sample size same input sample size. if feel it, pull request updating documentation quite welcome.


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