Closed nathaneastwood closed 4 years ago
Given a set of vectors, coalesce() finds the first non-missing value at each position. This is inspired by the SQL COALESCE function which does the same thing for NULLs.
coalesce()
COALESCE
NULL
Given a set of vectors,
coalesce()finds the first non-missing value at each position. This is inspired by the SQLCOALESCEfunction which does the same thing forNULLs.