flexrsurv - Flexible Relative Survival Analysis
Package for parametric relative survival analyses. It
allows to model non-linear and non-proportional effects and
both non proportional and non linear effects, using splines
(B-spline and truncated power basis), Weighted Cumulative Index
of Exposure effect, with correction model for the life table.
Both non proportional and non linear effects are described in
Remontet, L. et al. (2007) <doi:10.1002/sim.2656> and Mahboubi,
A. et al. (2011) <doi:10.1002/sim.4208>.
