topic Need help to understand the code in New SAS User

Need help to understand the code

Guptashwe — Mon, 03 Dec 2018 15:33:29 GMT

What would be the output value for group when the age is not 14? and why

data test;
set sashelp.class;
if age = 14 and sex = 'M' then do;
y =1;
group = '2';
end;
else do;
y =2;
group = '22';
end;
run;

Re: Need help to understand the code

RW9 — Mon, 03 Dec 2018 15:35:52 GMT

So the logic is, if age=14 and sex=m do first set, otherwise do second set. If age is not 14, then the first part of the if is false, and so the if statement cannot be true, therefore operation passes to the else do section.

Re: Need help to understand the code

PaigeMiller — Mon, 03 Dec 2018 15:36:48 GMT

@Guptashwe wrote:

What would be the output value for group when the age is not 14? and why

data test;
set sashelp.class;
if age = 14 and sex = 'M' then do;
y =1;
group = '2';
end;
else do;
y =2;
group = '22';
end;
run;

You can run the code yourself and find out what the output value for group is.

Why is that value assigned? Anyone who is 14 years old AND sex='M' gets group='2'. Everyone else is processed through the ELSE DO; block of code.

Re: Need help to understand the code

Tom — Mon, 03 Dec 2018 16:00:57 GMT

So the variable GROUP will always have the value '2'.

Can you explain why?