Simple Numeric Index (VARSTOCASES command)

A simple numeric index numbers the rows sequentially within a new group.

• The basic specification is /INDEX=ivar, where ivar is a name for the new index variable.
• The new index variable starts with 1 and increments each time a FROM variable is encountered in a row in the original file. After the last FROM variable is encountered, the index restarts at 1.
• Gaps in the index sequence can occur if null data are dropped.

Example

VARSTOCASES 
	/MAKE newvar FROM var1 TO var4 
	/INDEX=ivar.

caseid      ivar    newvar
 
001            1       .00        
001            2       .05        
001            3      5.00        
001            4      3.00        
002            1      7.00        
002            2      1.00        
002            3      5.00        
002            4      4.00        
003            1      6.00        
003            2      3.00        
003            3      6.00        
003            4      2.00