Join measurements without multiplying observational units
Usage
join_studyframe(x, y, by, variables, source)
Arguments
- x
A studyframe.
- y
A data.frame of additional measurements.
- by
Column names present in both inputs. The right-hand keys must be unique.
- variables
Variable declarations for every additional column.
- source
Description or identifier of the joined source.
Value
A studyframe with a many-to-one left join applied to its full roster.