[Scikit-learn-general] using forkserver through GridSearchCV and friends

2015-05-08 Thread Skipper Seabold
Hi, Is there anyway to specify the backend used by joblib? It's not obvious to me and this doesn't seem to work. from multiprocessing import set_start_method set_start_method(forkserver) I get a ton of RuntimeError: context has already been set exceptions. On Python 3.4.2, sklearn

Re: [Scikit-learn-general] using forkserver through GridSearchCV and friends

2015-05-08 Thread Skipper Seabold
On Fri, May 8, 2015 at 9:40 AM, Skipper Seabold jsseab...@gmail.com wrote: Hi, Is there anyway to specify the backend used by joblib? It's not obvious to me and this doesn't seem to work. from multiprocessing import set_start_method set_start_method(forkserver) Ah, it has

Re: [Scikit-learn-general] Using CBLAS libraries externally, setup (Quick Question)

2014-05-21 Thread Skipper Seabold
On Wed, May 21, 2014 at 8:00 AM, Lars Buitinck larsm...@gmail.com wrote: 2014-05-21 13:47 GMT+02:00 Olivier Grisel olivier.gri...@ensta.org: This is a great trick. We might want to get rid of our own partial copy of CBLAS at some point. I remember Radim (gensim maint) describing some trouble

Re: [Scikit-learn-general] KFold cross validation strangely defaults to not shuffle

2014-04-21 Thread Skipper Seabold
On Thu, Apr 17, 2014 at 9:56 AM, Mathieu Blondel math...@mblondel.org wrote: It seems to me that you assume the order in which a dataset is laid out is meaningful. I think there are cases when this order might be completely artificial and not reflect the true distribution of the data. For me,

Re: [Scikit-learn-general] PCA with missing data

2014-03-07 Thread Skipper Seabold
On Fri, Mar 7, 2014 at 2:01 PM, Vijay Desai vijay.de...@gmail.com wrote: It is actually commodities futures data. Another way to handle missing data could be to estimate covariance matrix by ignoring the missing values and then determine eigenvectors of the covariance matrix to obtain

Re: [Scikit-learn-general] Theil-Sen estimator for a multiple linear regression problem

2014-01-10 Thread Skipper Seabold
Hi, There have been some implementations of Theil-Sen floating around for inclusion in statsmodels, but no PRs yet. IMO it might fit in a little better in statsmodels.robust than sklearn unless their are some aspects of Theil-Sen I'm not familiar with. Skipper Sent from my mobile On Jan

Re: [Scikit-learn-general] from sklearn.all import *

2013-12-02 Thread Skipper Seabold
On Mon, Dec 2, 2013 at 11:29 AM, Joel Nothman joel.noth...@gmail.comwrote: I think it's great that scikit-learn keeps its objects to modular namespaces, and doesn't litter one space as does numpy, pyplot, etc. Yet, when writing quick scripts it can be frustrating to have to import from

Re: [Scikit-learn-general] from sklearn.all import *

2013-12-02 Thread Skipper Seabold
On Mon, Dec 2, 2013 at 3:11 PM, Gael Varoquaux gael.varoqu...@normalesup.org wrote: On Mon, Dec 02, 2013 at 02:50:45PM +, Robert Kern wrote: +1. Import * is a really really bad habit. And hacked up interactive environments (with crazy start up scripts) make it really hard to teach,

Re: [Scikit-learn-general] Automated benchmarking

2013-11-08 Thread Skipper Seabold
On Fri, Nov 8, 2013 at 6:30 PM, Karol Pysniak kpysn...@gmail.com wrote: Hi All, Has there any been discussion on adding some automated benchmarks for both speed and accuracy of the algorithms we have? I think it would very interesting if such a script could be automatically executed after

Re: [Scikit-learn-general] Project Best Practices

2013-09-11 Thread Skipper Seabold
On Wed, Sep 11, 2013 at 10:35 PM, David Reed david.ree...@gmail.com wrote: I apologize if this is a tad of topic, but I figured this was the best place to ask if any. When presented with a new research idea or project, I consistently deal with the issue of saving figures and results out to my

Re: [Scikit-learn-general] Defining a Density Estimation Interface

2013-07-08 Thread Skipper Seabold
On Mon, Jul 8, 2013 at 1:20 PM, Bertrand Thirion bertrand.thir...@inria.fr wrote: De: Jacob Vanderplas jake...@cs.washington.edu À: scikit-learn-general@lists.sourceforge.net Envoyé: Dimanche 7 Juillet 2013 19:10:38 Objet: [Scikit-learn-general] Defining a Density Estimation Interface Hi,

Re: [Scikit-learn-general] Defining a Density Estimation Interface

2013-07-08 Thread Skipper Seabold
On Mon, Jul 8, 2013 at 1:56 PM, Olivier Grisel olivier.gri...@ensta.org wrote: I am not sure what `sf` stands for, so it's probably a poor choice as we should not make the assumption that the library users will be well versed in stats acronyms. Survival function. 1 - cdf but often with better

[Scikit-learn-general] Rotations Code?

2013-04-21 Thread Skipper Seabold
Hi, Does anyone have any code for computing rotations of components after PCA or FactorAnalysis, etc. E.g., varimax? Thanks, Skipper -- Precog is a next-generation analytics platform capable of advanced analytics on

Re: [Scikit-learn-general] stepwise regression

2012-07-30 Thread Skipper Seabold
On Sat, Jul 28, 2012 at 3:13 PM, Zach Bastick zach.bast...@gmail.com wrote: The docs do not indicate whether there is anyway to do a stepwise regression in scikit-learn or in Python. All there seems to be is linear_model.LinearRegression(). This function outputs resulting

Re: [Scikit-learn-general] Interest in State Space Models

2012-05-14 Thread Skipper Seabold
On Mon, May 14, 2012 at 4:55 PM, Daniel Duckworth duckwor...@gmail.com wrote: Hello everyone, I noticed that scikit-learn (and Python in general) seems to be missing a decent module for State Space Models.  State Space Models are a type of generative model wherein one attempts to estimate the

Re: [Scikit-learn-general] How should I deal with log(0) when calculating Mutual Information?

2011-10-13 Thread Skipper Seabold
On Thu, Oct 13, 2011 at 11:10 PM, Robert Layton robertlay...@gmail.com wrote: I'm working on adding Adjusted Mutual Information, and need to calculate the Mutual Information. I think I have the algorithm itself correct, except for the fact that whenever the contingency matrix is 0, a nan

Re: [Scikit-learn-general] Scikit-learn renaming: success

2011-09-23 Thread Skipper Seabold
On Fri, Sep 23, 2011 at 9:04 AM, Nelle Varoquaux nelle.varoqu...@gmail.com wrote: Out of curiosity, did any of the other scikit move to a new name prefixed with sk? Is this something the scikits community is willing to do long term? Cheers, I can't say for sure, but I'm fairly certain that