An example of network meta-analysis for binary outcomes.
data("smoke")A data frame containing 24 studies on smoking cessation, comparing four treatments.
s.ida numeric vector of study IDs.
t.ida numeric vector of treatment IDs.
ra numeric vector of the event count for a certain treatment in the corresponding study.
na numeric vector of the total number of participants for a certain treatment in the corresponding study.
Treatment IDs stand for 1) no contact; 2) self-help; 3) individual counseling; and 4) group counseling.