Function reference • CTNote

All functions

collapse_lattice(): Combine Multiple Simple Study Design "Lattices"

count_matches(): Count Periods of Substance Use / Abstinence

detect_in_window(): Detect Visits before Matching a Fuzzy Sub-Pattern

detect_subpattern(): Detect a Consecutive Sub-Pattern

egOpioidsCTN0094: Opioid Use by Study Day for Example CTN-0094 Participants

impute_missing_visits(): Naively Impute Missing Visits

measure_abstinence_period(): Measure the Length of the Longest Abstinent Period

measure_retention(): Measure Length of Use Pattern before Dropout

outcomesCTN0094: All Treatment Outcomes for CTN-0094 Participants

recode_missing_visits(): Recode Missing or Ambiguous UDS in a Subject Use Pattern

view_by_lattice(): View a Pattern through a Study Design "Lattice"

weight_positive_visits(): Weight Visits in a Subject Use Pattern