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5 Commits

Author SHA1 Message Date
Vladimir Chalupecky
3c19fa0bbc stat/mds: adjust expectation in TorgersonScaling test 2021-03-20 09:49:59 +01:00
Dan Kortschak
cc09059115 stat/mds: make TorgersonScaling tests pass on arm64 
The failure is due to ED instability around zero.
 2020-01-13 08:52:57 +10:30
Brendan Tracey
5d5638e674 stat/*: Update functions to take empty matrices (#1102) 
* stat/*: Update functions to take empty matrices

Change TorgersonScaling to require an empty matrix. Users who want to reuse data can call Reset now that it is exposed. This function is different than others because the return size is unknown. Forcing the input matrix to be empty makes it clear that the dst matrix will be dynamically resized

Fixes #1081.
 2019-10-09 23:20:26 +01:00
Dan Kortschak
805040dba5 stat/mds: reduce work in TorgersonScaling and fix k return 
The fix for k papers over inaccuracies in near zero Eigenvalues. So this
may want further work there.
 2019-01-15 23:24:47 +10:30
Dan Kortschak
22ecbbb4f5 mds: new package for multidimensional scaling 2018-05-05 16:24:40 +09:30