topic Re: Help needed with outputting data using Data Step in SAS Programming

Help needed with outputting data using Data Step

jos283 — Fri, 28 Jul 2017 15:05:43 GMT

Here I have a bunch of Checks to output if they equal 1. Each check that is equal to 0 should be ignored.

This is the current code I have for the output:

Data ouput_file;
    Set input_file;
    If first_check = 1;
       If second_check = 1;
          If third_check = 1;
             If fourth_check = 1;
                 If fifth_check = 1 then output;
Run;

At the moment, the code only works assuming that first_check = 1. The problem I am facing is that if first_check = 0, the code won't run. If first_check = 0, I still want it to ouput the other checks if they are equal to 1.

How do I get it to run for all checks when they are equal to 1 assuming any check (i.e the first or second) can be 0?

Thanks

Re: Help needed with outputting data using Data Step

Reeza — Fri, 28 Jul 2017 15:22:28 GMT

You're conditions are stacked, like they have an AND. It looks like you want OR instead, if any is one then outout?

If so, you can simplify this by checking if the sum of the values are greater than or equal to 1.

if sum(first_check, second_check, .. , fifth_check) >= 1 then output;

Re: Help needed with outputting data using Data Step

Patrick — Sun, 30 Jul 2017 01:12:48 GMT

@jos283

The syntax (sub-setting IFs) you've used translate logically into AND. What you're after is OR.

If you're variables numeric and flags (0/1) then the logic @Reeza posted will work; else use something as below:

data ouput_file;
  set input_file;
  if 
    first_check = 1 
    or second_check = 1 
    or third_check = 1 
    or fourth_check = 1 
    or fifth_check = 1 
    then output;
run;