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May
4
awarded  Popular Question
Feb
11
answered How to identify quickly an aproximative number of clusters from a relatively small dataset
Jul
10
answered Ultimate compression algorithm
Jul
6
awarded  Revival
Jul
5
awarded  Teacher
Jul
4
awarded  Supporter
Jul
3
answered Best distance measure to use
Jul
3
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.
Jul
3
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. :(
Jul
3
comment Comparing relative frequencies between two groups
Can this be also used for continuous variable. like distribution of wage in each group?
Jul
3
comment Comparing relative frequencies between two groups
Thanks a lot very clear explanation
Jul
3
accepted Comparing relative frequencies between two groups
Jul
3
asked Comparing relative frequencies between two groups
Jul
1
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
Jul
1
revised Difference between Hausdorff and earth mover (EMD) distance
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Jul
1
revised Difference between Hausdorff and earth mover (EMD) distance
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Jul
1
comment Difference between Hausdorff and earth mover (EMD) distance
I am not sure why (1) is not a way to do (2). Anyway could you please provide more detail on how to go about doing (1)?
Jul
1
awarded  Scholar
Jul
1
comment Difference between Hausdorff and earth mover (EMD) distance
(1) EMD is earth mover distance (the total work required to move all A's mass onto B, under the optimal scheme for doing so) (2) in each sample the weight are for the same 10 people each day. But the people in each sample are different which mean we have 20 people in total. (3) at random (4) Hausdorff distance between the 3d point from the first dataset and the 3d point of the second dataset
Jul
1
accepted Difference between Hausdorff and earth mover (EMD) distance