tree 6c49964d26a00c5fa177a7f5524a714c25c042bc
parent 033c7e2c3913bf476c2d2cb5cd2d790643b3622a
author Alex Herbert <aherbert@apache.org> 1629536689 +0100
committer Gilles Sadowski <gilleseran@gmail.com> 1629549433 +0200

Add variance tests for zero weights

Update javadoc for the behaviour when input weights are zero.

This issue was found when checking the sonar report for the variance
class which has a potential divide by zero if the weights sum to zero.