When sampling using NUTS I keep getting this ValueError: Mass matrix contains zeros on the diagonal. Removing the jitter in the initialization does not eliminate this error. I tried what was recommended here: Limit or prevent unrealistic output of neural network but it didn’t work. What is the reaso…

NUTS and zero derivative error

junpenglao August 14, 2018, 6:55pm 2

One of the reason is some prior being too uninformative and the derivative is too small. What kind of model you are testing, and also what is the full error message?

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NUTS and zero derivative error

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