How to keep very close values of a continuous variable

[Mathis1]

Hello there !

I'm looking to keep in a table the observations whose values of a price variable are close, for instance (1% to each other).

For instance 

Obs1 - 356.12

Obs 13 - 356.13

Obs 26 - 234.13

Obs 73 - 234.14

Etc...

Thanks a lot for your help !

(I precise that I do not have a very advanced level on SAS)

[Kurt_Bremser · Accepted solution]

Sort by the price variable, then you can use lag() and a look-ahead to compare with previous and following values.

For (tested) code, provide an example of your dataset in usable form (a data step with datalines).

[Mathis1]

Thank you !