This paper compares acceptance-rejection sampling and methods of
Deák, Genz and Schervish for the
numerical computation of multivariate normal probabilities. Tests
using randomly chosen problems
show that the most efficient numerical methods use a transformation
developed by Genz (1992). The methods allow moderately accurate
multivariate normal
probabilities to be quickly computed for problems with a many as ten
variables.
Alan C Genz
1999-10-21