dear forum, i am a new student learning with SAS, i got stuck at one thing for like a week and still cant figure out what to do to achieve the thing i want... the beginning data set looks like this StockID Date BV A 1999Q1 202 A 2000Q2 308 A 2001Q3 405 B 1995Q2 507 B 1998Q1 609 B 1999Q4 201 the data i want looks like this StockID Date BV A 19990101 308 A 19990102 308 A 19990103 308 A 19990104 308 A . . A . . A . . A 20000531 308 A 20000601 405 A 20000602 405 A . . A . . B 19950601 609 B 19950602 609 B . . B . . B 19971231 609 B 19980101 201 B 19980102 201
... View more