Re: [Scikit-learn-general] "In-bag" for RandomForest*

2016-03-09 Thread Ariel Rokem
Hi Mathieu, On Tue, Mar 8, 2016 at 6:45 PM, Mathieu Blondel wrote: > If this function is generally useful, it might be a good idea to make it > public. > > Agreed! We're incorporating this in work we are doing to implement a method to calculate confidence intervals for RandomForest predictions

Re: [Scikit-learn-general] "In-bag" for RandomForest*

2016-03-08 Thread Mathieu Blondel
If this function is generally useful, it might be a good idea to make it public. Mathieu On Wed, Mar 9, 2016 at 1:29 AM, Ariel Rokem wrote: > > On Mon, Mar 7, 2016 at 8:24 AM, Andreas Mueller wrote: > >> Hi Ariel. >> We are not storing them any more because of memory issues, but you can >> rec

Re: [Scikit-learn-general] "In-bag" for RandomForest*

2016-03-08 Thread Ariel Rokem
On Mon, Mar 7, 2016 at 8:24 AM, Andreas Mueller wrote: > Hi Ariel. > We are not storing them any more because of memory issues, but you can > recover them using the random state of the tree: > > https://github.com/scikit-learn/scikit-learn/blob/master/sklearn/ensemble/forest.py#L76 > > > indices

Re: [Scikit-learn-general] "In-bag" for RandomForest*

2016-03-07 Thread Andreas Mueller
Hi Ariel. We are not storing them any more because of memory issues, but you can recover them using the random state of the tree: https://github.com/scikit-learn/scikit-learn/blob/master/sklearn/ensemble/forest.py#L76 > indices = _generate_sample_indices(tree.random_state, n_samples) Hth, Andy

[Scikit-learn-general] "In-bag" for RandomForest*

2016-03-04 Thread Ariel Rokem
Hi everyone, Is there some way to identify the samples that were used in constructing each tree in a RandomForest* object? I am looking for the equivalent of "keep.inbag" in this R implementation: http://math.furman.edu/~dcs/courses/math47/R/library/randomForest/html/randomForest.html Thanks! A