January 04, 2013
_n_ variable in SAS
Creating a post on this because the interwebs appear to be a bit crossed.
One source indicates
The automatic variable _n_ represents the observation numbers.
While another indicates
Each time the DATA step loops past the DATA statement, the variable _N_ increments by 1. The value of _N_ represents the number of times the DATA step has iterated.
I suppose these are equivalent statements if the data step iterates for every observation in the data file.
Posted by kkwaiser at January 4, 2013 04:09 PM