How to display the old Obervation Number in the dataset when dataset is sorted

[SushilKumar]

I Have Created a Dataset as

RF101	101	10001	ALPHA	XABC	RF10110110001
RF101	101	10001	BETA	XABC	RF10110110001
RF101	101	10001	GAMMA	RFAB	RF10110110001
RF101	101	10002	GAMMA	GAG	RF10110110002
RF101	101	10002	ZURO	MAM	RF10110110002
RF101	101	10002	GAAFAZ	GAG	RF10110110002
RF101	101	10002	XELFO	MAM	RF10110110002

And i Sorted the dataset as

RF101	101	10001	GAMMA	RFAB	RF10110110001
RF101	101	10001	ALPHA	XABC	RF10110110001
RF101	101	10001	BETA	XABC	RF10110110001
RF101	101	10002	GAAFAZ	GAG	RF10110110002
RF101	101	10002	GAMMA	GAG	RF10110110002
RF101	101	10002	XELFO	MAM	RF10110110002
RF101	101	10002	ZURO	MAM	RF10110110002

I Want the Obersvation Number of the dataset (which is not sorted) in the Output dataset in a Variable called Result

[LinusH]

Well, then you have to store the original sort order in a column. Using SQL order by, you could use the monotonic() function, or assign it to _N_ in a data step prior to sorting.

[SushilKumar]

Could You write the Code How to assgin it.

[RichardinOz]

SushilKumar

Create your 'Result' variable thus

     Data Coded ;

          Set Original ;

               Result = _N_ ;

     Run ;

Then sort it.

Richard