Bugfix: Models with only one outcome (when computing variance-covariance matrix,
have to adjust the shape of the output since there no covariance with only one outcome)
Bugfix: For weights when only specifying one outcome (previous weights assumed two outcomes)
Bugfix: Weights were not being sorted in the same way as the other data inputs
February 18, 2020 (v0.0.0)
Feature: Include splines for any parameter and outcome, see model specification
Feature: Added optimization iteration flexibility for fixed and random effects, plus optional relative tolerance, see optimization
Bugfix: the ccount.core.CorrelatedModel.summarize() function