SPSS LOOP with VECTOR(index) gives spss-error 4023-CodePudding

I have the following LOOP syntax:

 VECTOR tb= tb1 TO tb16 / X(16).
 EXECUTE.
 loop #i = 1 to 5.
 if (tb(#i) > 0) X(#i) = tb(#i).
 end loop.
 exe.

And SPSS tells me:

 >Error # 4023 in column 5.  Text: tb 
 >An expression contains a string of characters followed by a left parenthesis, 
 >indicating that the string of characters is a function or vector name, but the 
 >characters do not match any existing function or vector.  Check the spelling. 
 >Execution of this command stops.

Help please.

CodePudding user response：

Remove EXECUTE. after vector definition. That deletes the tb vector from memory. tb is stored in memory until the first EXECUTE.