Documentation: vignettes/questionnaires.Rmd, variable not specified in by statement

[PavloChaika]

Creating Questionnaire ADaMs
Time to Confirmed/Definitive Deterioration/Improvement

In following script we use DTHCAUS in filter condition for derived records, even though the variable is not specified in by statement of derive_summary_records function, hence will always be missing and expression will always be false.

derive_var_joined_exist_flag(
by_vars = exprs(USUBJID, PARAMCD),
order = exprs(ADT),
new_var = CDTDTHFL,
join_vars = exprs(CHGCAT1, ADY),
join_type = "after",
tmp_obs_nr_var = tmp_obs_nr,
filter = CHGCAT1 == "WORSENED" & (
CHGCAT1.join == "WORSENED" & ADY.join >= ADY + 7 |
tmp_obs_nr == max(tmp_obs_nr.join) & DTHCAUS == "PROGRESSIVE DISEASE")
)