sampling
Posted: Fri Jul 02, 2010 10:10 am
I need to generate a number of samples in a dataset using the 6 and 7th characters from an alpha series with 60K records. Here is an example data point:
02101OP0004
I've tried tyo sample the set using various combinations of wildcards to not avail - I get "sample has no observations". Here are example sample statements.
if contractum="?????OP????"
if contractnum="*OP*"
Help please!
02101OP0004
I've tried tyo sample the set using various combinations of wildcards to not avail - I get "sample has no observations". Here are example sample statements.
if contractum="?????OP????"
if contractnum="*OP*"
Help please!