mixture model training added; EM for mixture model added

- EM for mixture model
- mixture model training
- unittest for mixture model with gaussian distributions 
Ok yes my bad. It's for storing data required for em in mixture model.
On 7 Aug 2014 02:17, "Fernando Iglesias" <notifications@github.com> wrote:

> In src/shogun/distributions/MixModelData.h:
>
> >  {
> > -	float64_t expect_cur=CMath::MIN_REAL_NUMBER;
> > -	float64_t expect_prev=0;
> > -	int32_t i=0;
> > -	bool converge=false;
> > -	while (i<max_iters)
> > +	struct MixModelData
>
> Can we get some documentation for this struct? What is it for?
>
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> <https://github.com/shogun-toolbox/shogun/pull/2448/files#r15921200>.
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