Changes:
- Modified the Davies test for the existence of one breakpoint to use the Wald test as a test statistic, following Muggeo, V. M. (2008). Segmented: an R package to fit regression models with broken-line relationships. R news, 8(1), 20-25.
- Added tests for the Davies test with a range of data models.
- Added the option to get model fit parameters easily with a convenience function
get_paramson the Fit object. - Added the option to get data predictions easily with a convenience function
predicton the Fit object. - Made small changes in response to issues raised.