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avatarzhang / python-statlib

Automatically exported from code.google.com/p/python-statlib
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Some more problems with correlation #4

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Hey!

You should add this to patches also to the other correlation functions:

* Add to statlib for kendall (line 991):
    TINY = 1e-30
    n1 = max(TINY, n1)
    n2 = max(TINY, n2)
- happen when try to compare [0,0,0,0,0] and  [1,2,3,4,5]

* Add to statlib for pearson (line 883)
    r_den = math.sqrt((n*ss(x) -
square_of_sums(x)+TINY)*(n*ss(y)-square_of_sums(y)+TINY))
- happen when try to compare [0,0,0,0,0] and  [1,2,3,4,5]

Original issue reported on code.google.com by jas...@gmail.com on 5 Sep 2008 at 4:26