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0.3.0 by Magnus Thor Torfason, a year ago
https://torfason.github.io/zfit/, https://github.com/torfason/zfit
Browse source code at https://github.com/cran/zfit
Authors: Magnus Thor Torfason
Documentation: PDF Manual
MIT + file LICENSE license
Suggests testthat, dplyr, MASS, estimatr
See at CRAN