Change LDA vocab smoothing from 0.01 to 0.1
Add (commented) code to bag the input for covariance estimation

Still the fundamental problem of colinearity of course.
Delete bagging code

Had been commented out previously.
Bags (i.e. generates a larger dataset from) the input words, to see if
insufficient data was the issue with covariance estimation.

Didn’t appear to be, but of course colinearity would be an issue.