I use MultivariateNormal(mea, cov).sample()…
but I meet this problem
RuntimeError: Lapack Error in potrf : the leading minor of order 82 is not positive definite at /tmp/pip-cw2dhwyj-build/aten/src/TH/generic/THTensorLapack.c:617
What should I do to solve this problem?

스크린샷 2018-06-27 오전 12.42.28.png1282×688 90.4 KB