M
msun65
Please help me create a function to
1. returns a value of 1 if the expression ("date") is the first date
from a specified set of records.
2. returns a value of 2 if the "date" is the second date from a
specified set of records that meets the following criteria:
1. returns a value of 1 if the expression ("date") is the first date
from a specified set of records.
2. returns a value of 2 if the "date" is the second date from a
specified set of records that meets the following criteria: