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Mathematics
Ray Koopman's user avatar
Ray Koopman's user avatar
Ray Koopman's user avatar
Ray Koopman
  • Member for 11 years, 2 months
  • Last seen more than 10 years ago
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Expected value of normal CDF
Aug 3, 2013
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31
Why could centering independent variables change the main effects with moderation?
28
Partitioning a list of numbers the Mathematica way
26
Uniformly distributed n-dimensional probability vectors over a simplex
24
What does the inverse of covariance matrix say about data? (Intuitively)
20
Elegant high precision `log1p`?