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17 Commits

Author SHA1 Message Date
Jonathan J Lawlor
5d7e4d3b79 test for chi2 special case 
Add test for chi squared distance special case, with both bins == 0.
 2014-10-19 18:35:42 -04:00
Jonathan J Lawlor
f510cbd899 Handle NaN inputs in CDF 
When sort.Float64sAreSorted is called, it panics on NaN inputs.

The way the code is written, there seems to be an intent that if the
input x contains a NaN, then the function should return a NaN.  I
switched the order of the conditional statements so that this became
possible.

I also modified the test cases so that cases with NaN could be
evaluated.
 2014-10-19 18:28:50 -04:00
Jonathan J Lawlor
2afe21d761 Add tests for panics in CDF 
Add test cases for the various ways that CDF can panic.

We might want to have a reserved CumulantKind that is always invalid,
just for testing.
 2014-10-19 17:31:03 -04:00
Jonathan J Lawlor
e5c3361454 Add test for panic in Bhattacharyya 2014-10-19 17:09:43 -04:00
Jonathan J Lawlor
013f164022 add Panics to help test code that should panic 
This is from gonum/floats’s tests.  It wraps a called function in a
defer / panic (hopefully) / recover.
 2014-10-19 17:09:19 -04:00
btracey
c2c92a04af Added Kolmogorov-Smirnov distance function and test 2014-09-18 16:20:10 -07:00
btracey
1da795789e Fixed check for zero probability value in JensenShannon and updated test. 2014-09-16 23:46:39 -07:00
btracey
6f420f1ff0 Added JensenShannon distance function with test 2014-09-16 22:57:24 -07:00
Brendan Tracey
9cabea418c Merge pull request #6 from pradeep-pyro/stat_distances 
Added a few statistical distances
 2014-09-02 22:27:49 -07:00
btracey
fae354edd8 Fixed spelling of Kullback-Leibler. 2014-09-01 10:19:05 -07:00
pradeep
ceb78858fe Reorder functions in alphabetical order. 
Remove normalization in bhattacharyyaCoeff().
 2014-09-01 16:35:40 +08:00
pradeep
ca4b71f0fa Fixed bugs; 
Added Bhattacharyya(), Hellinger() and tests;
Removed Intersection().
 2014-09-01 14:26:59 +08:00
btracey
244075b735 Make golint happy. Change StDev to StdDev. 
This CL changes the function signature from StDev to StdDev to match the other StandardXxx functions.
Additionally, this PR fixes the comments that don't start with the correct name
and changes +=1 to ++ by recommendation from golint
 2014-08-05 21:58:31 -07:00
btracey
758d7216bc Changed formattign on histogram function. Changed name of Percentile to CDF and improved panic message 
Lists should be separated out into their own block (see the reflect package).
It was decided in code review that Quantile and Percentile are confusing
so it was decided to change it to Quantile and CDF
 2014-08-05 19:19:27 -07:00
btracey
a00167aefa Flipped the names of Quantile and Percentile. Added CumulantKind to Quantile and Percentile functions. 2014-08-05 11:01:47 -07:00
btracey
1bb472a6c9 Incorporated PR comments 2014-08-04 23:23:39 -07:00
btracey
279d2bd0a9 Initial commit of sample statistics functions to the stat package 2014-08-04 16:13:19 -07:00