topic Re: iF STATEMENT in SAS Programming

IF statement logic

AZIQ1 — Tue, 12 Jul 2016 23:38:12 GMT

Hi,

Have

var1 var2 var3 var4

1 2 2 4

1 3 3 3

1 2 2 0

1 5 5 5

want if var1 =1 and value of var2 , var3 or var4 is either 2 or 3 then flag =1 else 0.

want

var1 var2 var3 var4 flag

1 2 2 4 1

1 3 3 3 1

1 2 2 0 1

1 5 5 5 0

thanks

Re: iF STATEMENT

Reeza — Tue, 12 Jul 2016 23:36:40 GMT

If var1=1 and (var2 in (2 3) or var3 in (2 3) or var4 in (2 3)) then flag=1;
Else flag=0;

Re: IF statement logic

ballardw — Wed, 13 Jul 2016 17:27:50 GMT

Here is an alternate approach to consider if you have more variables to search but still have a smallish number of values.

array t var2-var4;
flag = (var1=1 and (whichn(2, of t(*))>0 or whichn(3, of t(*))>0));

if you have 15 variables to search in for example then you just add them to the Array definition.

If you want to search for character values use WhichC instead of WhichN.

Re: iF STATEMENT

AZIQ1 — Thu, 14 Jul 2016 19:50:38 GMT

Thank you am also looking for an easy if statement

have

var1 var2 var3 var4 flag (want)

a b b a 0

a a a 1

a 1

if the value (could be any) but in above eg its "a" of var1 matches with var1 2 or 3 then flag 1 else 0

All vlaues should match var1 or be equal to var1

Thanks

Re: iF STATEMENT

Reeza — Thu, 14 Jul 2016 20:50:00 GMT

You should start a new thread for a new question.

'Easiest' depends on your programming skills.

For something like this your best of looping through all values.

array vars(3) var2-var4;

Flag=0;

do i =1 to dim(vars);

if vars(I) ne var1 then flag=1;

end;

Another option

array vars(3) var2-var4;

flag=0;

if catt(of vars(*)) ne repeat(var1, n(of vars(*))) then flag=1;