[Scikit-learn-general] Paris sprint 2nd April

2015-04-01 Thread Timothy Vivian-Griffiths
I’m now in Paris, and I have done the preparations for the sprint tomorrow. However, I’ve been looking around on the website, and I cannot find the time that it is starting. Can anyone tell me please? Tim -- Dive into th

[Scikit-learn-general] PyData Paris Sprints 2nd April

2015-03-30 Thread Timothy Vivian-Griffiths
hrough documentation fixes or easy fixes: > https://github.com/scikit-learn/scikit-learn/issues?q=label%3AEasy > > You could also help us triaging issues. > > Looking forward to seeing you, > > Ga?l > > On Mon, Mar 30, 2015 at 02:51:04PM +, Timothy Vivian-Griffiths

[Scikit-learn-general] Sci-kit learn sprints PyData Paris

2015-03-30 Thread Timothy Vivian-Griffiths
Just a quick question here about the upcoming event in Paris this week. I have bought tickets for the event on Friday and am really looking forward to it. I have also made my travel plans such that I will actually be in Paris for the 2nd, on the day of the sprints. I would describe myself as a u

[Scikit-learn-general] Feature selection and cross validation; and identifying chosen features

2015-02-11 Thread Timothy Vivian-Griffiths
which I presume shows the columns of the inputs that were used in the final model. Thanks again, Tim > Hi Tim, > > On 9 February 2015 at 19:54, Timothy Vivian-Griffiths > wrote: >> >> >> I have a dataset with a very large number of features (> 22,000), and it

[Scikit-learn-general] Feature selection and cross validation

2015-02-09 Thread Timothy Vivian-Griffiths
Just a quick follow up to some of the previous problems that I have had: after getting some kind assistance at the PyData London meetup last week, I found out why I was getting different results using an SVC in R, and it was happening because R scales the inputs automatically whereas sklearn doe

[Scikit-learn-general] Different results in R and sklearn

2015-01-20 Thread Timothy Vivian-Griffiths
x27;rbf'). I will also compare the performance with some other kernels and parameters when I can as well. Tim > > On 01/19/2015 10:43 AM, Timothy Vivian-Griffiths wrote: >> I have used this same dataset and parameters in Rs implementation of an SVM, >> and it is not outpu

[Scikit-learn-general] Different results when repeating SVC

2015-01-20 Thread Timothy Vivian-Griffiths
to reproduce the scores? > > Best, > Andy > > > On 01/19/2015 11:21 AM, Timothy Vivian-Griffiths wrote: >> Hi Andy, >> >> *This is actually the second time that I sending this reply as I don't think >> that it got to the mailing list, and I cannot see i

Re: [Scikit-learn-general] Different Results when repeating SVC

2015-01-19 Thread Timothy Vivian-Griffiths
ks fine to me: > http://sourceforge.net/p/scikit-learn/mailman/message/33220124/ > Did you subscribe to the mailing list? Otherwise you will not get replies > (except this one where I explicitly copied you into the "to"). > > Andy > > On 01/13/2015 11:08 AM, Timothy Vivian-Griff

[Scikit-learn-general] Different results using cross_val_score and StratifiedKFold

2015-01-19 Thread Timothy Vivian-Griffiths
continuous values, and you should find its results replicated by using > roc_auc_score(y_test, svc.decision_function(X_test)) rather than the > version with predict. Cheers, Joel > > On 19 January 2015 at 21:45, Timothy Vivian-Griffiths < > vivian-griffith...@cardiff.ac.uk> wrote: >

[Scikit-learn-general] Different results using cross_val_score and StratifiedKFold

2015-01-19 Thread Timothy Vivian-Griffiths
Just in case this does appear twice, I am sending this for the second time as I have not seen it appear on the website archives, neither has it featured in the latest mail that I have received from this mailing list. This is really following on from the recent problems that I have been having t

[Scikit-learn-general] Different Results when repeating SVC + not receiving update emails

2015-01-13 Thread Timothy Vivian-Griffiths
mail.com>> > wrote: > > Hi Tim. > Please keep all discussions on the mailing list, as individual contributors > might not find the time to respond. > With fixed random seeds, results should be reproducible. If you provide the > full code, it might be possible to say whe

Re: [Scikit-learn-general] Thanks for help

2015-01-09 Thread Timothy Vivian-Griffiths
cores using cross_val_score. For otherwise maintained clusters: installing a version locally is super easy. Just check out the dev version and set the pythonpath appropriately, or install into a virtual environment. Many people have custom python libraries (or whole environments) installed. Cheers, Andy

[Scikit-learn-general] Different results when repeating SVM algorithm

2015-01-06 Thread Timothy Vivian-Griffiths
I am having some confusing results arising when I am carrying out a permutation exercise on my data using the SVC function from the sklearn.svm module. The data I am using is quite large and has very high dimensionality, but I will try to explain it briefly. The dataset represent risk scores fo