Compare each observation with all values of a variable using SAS Arrays.

[@PavanKumar0.9]

👏👏👏 worth watching great explanation

[@hurmathjabeen3948]

This is so effective. Thank you sir

[@sushant2884]

As usual worth watching Sir

[@sravanchandra4343]

super explanation sir ..........

[@ntintelomazibuko9722]

A regular expression would have worked nicer here.

[@kiranvenna]

Temporary arrays are memory resident structures, hence they are much more efficient

[@ntintelomazibuko9722]

Maybe we should test the run time efficiency?