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(parent: 12212df) | patch
FREQUENCIES: Fix percentiles calculation. 20110312030504/pspp 20110313030503/pspp 20110314030506/pspp 20110315030503/pspp 20110316030502/pspp 20110317030504/pspp 20110318030507/pspp 20110319030507/pspp
authorBen Pfaff <blp@cs.stanford.edu>
Sat, 12 Mar 2011 06:10:54 +0000 (22:10 -0800)
committerBen Pfaff <blp@cs.stanford.edu>
Sat, 12 Mar 2011 06:10:54 +0000 (22:10 -0800)
commit26ff6fce95fb38f0986017dd922c36d4b1b239c7
tree15c873a4537dc8fdc09f3a11eceb0e12b85fae22tree | snapshot
parent12212dfd8afc14405274703b511c32d362ec0ab5commit | diff
FREQUENCIES: Fix percentiles calculation.

The condition for using a variate directly instead of interpolating was
just wrong.  It would interpolate in cases where it clearly should not,
which produced incorrect results in many cases.

Thanks to Fabio Bordignon <bordignon@demos.it> for reporting the problem
and supplying a simple test case.
src/language/stats/frequencies.q diff | blob | history
tests/language/dictionary/weight.at diff | blob | history
tests/language/stats/frequencies.at diff | blob | history
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