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Le 26/02/2010 17:37, Invisible nous fit lire :
> OK, so I finally have to ask. What the hell *is* a chi-squared test? And
> why does POV-Ray need one?
chi-squared is mentionned in povray documentation about the media
sampling, and it's an heuristic to avoid taking far too much expansive
samples when the chi-squared test would indicate that "statically",
there is no point getting more samples.
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