# Version 1.0 - !!Breaking change!!--`btscs` now starts the spell time counter from 1, rather than 0. The returned variable is also call `spell_time` rather than `spell` as the former is more intuitive. - `btscs` checks that all supplied variables are in `df`. Error otherwise. - Includes a modified version of the `negative` data set called `negative_year`. This enables more intuitive examples. # Version 0.1.2 - Linetype for `plte_plot` now matches Williams (2016), e.g. solid lines for Y = 1. - Minor documentation improvements. # Version 0.1.1 - `plte_builder` finds polynomial splines using the B-spline basis. Note: apart from the degree of the piecewise polynomial, the default behaviour for `bs` is assumed. - Added ability to supply a custom baseline scenario to `plte_builder via the `cf` argument. # Version 0.1.0 - Minimal working version.