defines a function factory that returns normally distributed times. FOr usage with sedrate_to_multiadm and strat_cont_to_multiadm.
tp_time_norm(mean, sd, force_order = TRUE)function for usage with strat_cont_to_multiadm and sedrate_to_multiamd as t_tp input
numeric vector, mean age of tie points
numeric vector, standard deviation of tie points
logical, enforce strictly increasing times
tp_time_floating_scale() for tie points for a floating scale, tp_height_det() for deterministic height tie points