exp_strata {LTASR} | R Documentation |
exp_strata()
creates an exp_strata that defines which variable to consider,
any lag to be applied, and cutpoints for the strata.
exp_strata(var = character(), cutpt = numeric(), lag = 0)
var |
character naming the variable within the history data.frame to consider. |
cutpt |
numeric vector defining the cutpoints to use to stratify the calculated cumulative exposure for variable |
lag |
numeric defining the lag, in years, to be applied to exposure variables. Default is 0 yrs (i.e. unlagged). Must be a whole number. |
an object of class exp_strata
to be used in the get_table_history()
.
library(LTASR)
exp1 <- exp_strata(var = 'employed',
cutpt = c(-Inf, 365, Inf),
lag = 10)