using vector to do a repeating subtraction

[msherman]

Dear List. I have the following situation which should be easy to do.

I have 38 variables which represent scores on therapy sessions 1 thru
38.  I want subtract  session one scores from each of the 37 remaining
scores and then divide that by a constant. So that I will now have 37
new variables.  Thanks, martin sherman

[Marks, Jim]

Not tested:

DO REPEAT x = sess2 TO sess38
  /y = diff2 TO diff38.
COMPUTE y = (x - sess1)/c.
END REPEAT.

EXECUTE.

--jim



-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Martin Sherman
Sent: Friday, October 20, 2006 11:08 AM
To: [hidden email]
Subject: using vector to do a repeating subtraction

Dear List. I have the following situation which should be easy to do.

I have 38 variables which represent scores on therapy sessions 1 thru
38.  I want subtract  session one scores from each of the 37 remaining
scores and then divide that by a constant. So that I will now have 37
new variables.  Thanks, martin sherman