Re: [Scikit-learn-general] Call for code nominations for Elegant SciPy!

Congrats Stefan, btw. Now sure where you find the time man. On Thu, Feb 5, 2015 at 8:28 PM, Juan Nunez-Iglesias jni.s...@gmail.com wrote: Hmm, not sure why this didn't render: Hi all, Sorry for cross posting but we are trying to get as many great submissions as possible! I'll keep things

Re: [Scikit-learn-general] Equivalence between PCA and SVD

, Aug 2, 2014 at 9:32 PM, Adam Hughes hughesada...@gmail.com wrote: Just to give an example, here's how I want to apply PCA to spectroscopy experiments: http://pdf.lookchem.com/pdf/32/f21930e7-09dc-4f70-ba24-f1edf8fdf02e.pdf On Sat, Aug 2, 2014 at 3:28 PM, Adam Hughes hughesada...@gmail.com

Re: [Scikit-learn-general] Equivalence between PCA and SVD

Deepak, Thanks for getting this discussion started. I also had some similar concerns. There are some new applications in spectroscopy that use the principle components on spectral data; however, in those systems, the centering is done along the feature axis. Thus, my dataset is shaped like

Re: [Scikit-learn-general] Equivalence between PCA and SVD

Just to give an example, here's how I want to apply PCA to spectroscopy experiments: http://pdf.lookchem.com/pdf/32/f21930e7-09dc-4f70-ba24-f1edf8fdf02e.pdf On Sat, Aug 2, 2014 at 3:28 PM, Adam Hughes hughesada...@gmail.com wrote: Deepak, Thanks for getting this discussion started. I also

Re: [Scikit-learn-general] Help simple adaption of PCA

you want a PCA on X.T (X transposed). HTH Alex On Tue, Jul 22, 2014 at 3:14 AM, Adam Hughes hughesada...@gmail.com wrote: Hi, I'm really enjoying scikit learn and looking to add a lite version of PCA to some programs I'm working on, derived mostly from the decomposition.PCA class. I

[Scikit-learn-general] Help simple adaption of PCA

Hi, I'm really enjoying scikit learn and looking to add a lite version of PCA to some programs I'm working on, derived mostly from the decomposition.PCA class. I have a few quick questions, and really would appreciate some help from the experts. First, the PCA class is designed to operate on

[Scikit-learn-general] Colors of hyperplane plot

Hello, We have a very closely related example to the multiclass iris example: -- Put Bad Developers to Shame Dominate Development with Jenkins Continuous Integration Continuously Automate Build, Test Deployment Start a

Re: [Scikit-learn-general] Colors of hyperplane plot

between integers and the resulting colors too well. On Mon, Apr 7, 2014 at 12:29 PM, Adam Hughes hughesada...@gmail.com wrote: Hello, We have a very closely related example to the multiclass iris example: -- Put Bad

Re: [Scikit-learn-general] Colors of hyperplane plot

://wiki.scipy.org/Cookbook/Matplotlib/Show_colormaps 2014-04-07 11:33 GMT-05:00 Adam Hughes hughesada...@gmail.com: Sorry, prematurely sent: We have a very closely related example to the multiclass iris SGD example: http://scikit-learn.org/stable/auto_examples/linear_model/plot_sgd_iris.html

[Scikit-learn-general] Help with line in example

Hello, I'm trying to follow the spectral clustering examplehttp://scikit-learn.org/stable/auto_examples/cluster/plot_segmentation_toy.html and am not very skilled in machine learning. From reading about normalized cuts, I understand most of what is going on, but am confused particularly in this

Re: [Scikit-learn-general] Some questions about PCA class

:11:46PM -0400, Adam Hughes wrote: I noticed in the PCA class methods fit() and fit_transform(), there is a keyword option y=none that is never actually used. I was curious why this is, but it's not all the important. Because methods should have the same signature across scikit-learn