By Anonymous - November 9, 2018

Covariates

SLEEP

The categorical baseline variable SLEEP_HRS_DAILY is turned into a numeric N_SLEEPHRS variable.

SLEEP_HRS_DAILY SLEEPHRS_DAY
1 2.5
2 4
3 5
4 6
5 7
6 8
7 9
8 10
9 11.5

Code