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
