


Since the observed values are not imputed, the user-specified values are still being used to fit the imputation model ( #392, #519). Excluded values will not appear in the imputations. Contributed new argument exclude to () that excludes a user-specified vector of values from matching. Contributed a custom.t argument to pool() that allows the advanced user to specify a custom rule for calculating the total variance T. This version restores the old behaviour using global. However, various issues arose with this facility ( #459, #492, #502, #505). #432 introduced new local seed in response to #426. Contributed the internal seed behaviour back to mice 3.13.10 ( #515). Contributed convergence() for convergence evaluation ( #484).

Contributed multivariate predictive mean matching (). Adds a function futuremice() with support for parallel imputation using the future package ( #504).
