DETAILS An EVALUATE command in the same program as SPSS SAVE FILE (system) would corrupt string variables in that file. RETRIEVAL EXAMPLE PROGRAM RETRIEVAL . PROCESS CASES ALL . GET VARS ID . PROCESS RECORD EMPLOYEE . GET VARS NAME GENDER . EVALUATE z = "1+1" . PERFORM PROCS . END PROCESS RECORD . END PROCESS CASES SPSS SAVE FILE FILENAME = "testspss.sav" VARIABLES = ID NAME GENDER END RETRIEVAL WORKAROUND Avoid evaluate or use PORTABLE option on spss