# skyde

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 Aug1 awarded Commentator Aug1 comment Kullback-Leibler divergence of two normal distributions This is very helpful but isn't that only valid if the mean and variance are assumed to be positive? Aug1 accepted Kullback-Leibler divergence of two normal distributions Aug1 asked Kullback-Leibler divergence of two normal distributions Aug1 comment KL divergence between two univariate Gaussians I have just seen in a research paper that kld should be \$KL(p, q) = ½ * ((μ₁-μ₂)² + σ₁²+σ₂²) * ( (1/σ₁²) + (1/σ₂²) ) - 2 May4 awarded Popular Question Feb11 answered How to identify quickly an aproximative number of clusters from a relatively small dataset Jul10 answered Ultimate compression algorithm Jul6 awarded Revival Jul5 awarded Teacher Jul4 awarded Supporter Jul3 answered Best distance measure to use Jul3 comment Comparing relative frequencies between two groups if i have 50 people in each group and for each people the wage. And i want to measure the % of similarity between the two group. The only way i see of doing the chi-squared test is to split wage in demographic 2 (rich and poor) before doing the analysis but it seem like there should be a better way to do that. Jul3 comment Comparing relative frequencies between two groups I understand that as long as i split the value for wage in bin i can use each bin as a demographic. But this would mean finding the optimal bin width. :( Jul3 comment Comparing relative frequencies between two groups Can this be also used for continuous variable. like distribution of wage in each group? Jul3 comment Comparing relative frequencies between two groups Thanks a lot very clear explanation Jul3 accepted Comparing relative frequencies between two groups Jul3 asked Comparing relative frequencies between two groups Jul1 comment Difference between Hausdorff and earth mover (EMD) distance 1) sample 1 and 2 are people that subscribed to my service in different country. 2) the 3 measurments are weight over 3 days without treatements 3) they are not the same personnes 4) there is the same number of individual in each sample and if they come from the same population or generated from the same PDF then i guess y for every individual in sample1 you should be able to find a similar individual in sample2 Jul1 revised Difference between Hausdorff and earth mover (EMD) distance added 113 characters in body