Re: [Scikit-learn-general] contributing to scikit

2014-02-01 Thread Robert Layton
Hi Joseph, In theory, you should be able to take any classifier in sklearn and base your implementation off that. That said, there are a few caveats. Some classifiers are older, before coding was more formalised. Others have a lot of cython code hooks, and can be difficult to read. That all said,

Re: [Scikit-learn-general] contributing to scikit

2014-02-01 Thread Joseph Perla
Is this the right place to ask? I'm just going to send in a pull request if nobody has any suggestions. j On Fri, Jan 31, 2014 at 7:10 PM, Joseph Perla wrote: > I love SciKit and I'm going to contribute an SGD classifier for > semi-supervised problems. > > I already read through all the contribut

Re: [Scikit-learn-general] PCA on 3D images

2014-02-01 Thread Gael Varoquaux
> The basic problem here was converting back from 2D array to 3D or 4D > array which is handled by NiftiMasker inside Nilearn. That's what I thought. Good that it works for you. We need to keep working on it to do a 0.1 release. Cheers, Gaƫl ---

Re: [Scikit-learn-general] PCA on 3D images

2014-02-01 Thread Arman Eshaghi
Thanks, sorry for the vague and general problem. Yes Nilearn solved everything, although it is still under development but examples are fine and one can do everything based on the examples available. The basic problem here was converting back from 2D array to 3D or 4D array which is handled by N

Re: [Scikit-learn-general] PCA on 3D images

2014-02-01 Thread Gael Varoquaux
> I understand that scikit-learn is a general purpose tool, however here > I appreciate if you could forward me to a webpage, tutorial , and etc > to be able to understand the basis of my problem. I work on 3D Images > of MRI (or 4D). A typical problem, for example, is when I use PCA > decompositio

Re: [Scikit-learn-general] joblib dump compression

2014-02-01 Thread Gael Varoquaux
On Sat, Feb 01, 2014 at 04:46:08PM +0100, Peter Prettenhofer wrote: > sorry but I didn't find a dedicated joblib mailing list and since most of the > joblib contributors hang around here I thought I give it a shot. It's http://librelist.com/browser/joblib/ job...@librelist.com > When using compre

[Scikit-learn-general] joblib dump compression

2014-02-01 Thread Peter Prettenhofer
Hi list, sorry but I didn't find a dedicated joblib mailing list and since most of the joblib contributors hang around here I thought I give it a shot. I'm using joblib to dump scikit-learn RF models. When using compression is the output always guaranteed to be stored in a single file? I looked a