if then do else if do

[BrahmanandaRao]

data even_odd;
do i= 1 to 100 ;
if mod(i,2)=0 then do;
number='Even' ;
end;

else if mod(i,2)=1 then do ;
number ='Odd';
end;
run;

I am using if then do else if do 

to get even and odd result in number variable column

[Kurt_Bremser]

And what is your question?

[BrahmanandaRao]

Error unclosed Do block 

[Kurt_Bremser]

Against a gazillion of advice to the contrary, you still refuse to use proper code formatting with indentation, which makes finding such an issue a breeze. If you are not interested in advice, why do you come here at all?

Start by using consistent indentation for your do/end blocks, and the problem will jump into your eyes so hard that I have to fear for your future eyesight.

[BrahmanandaRao]

data even_odd;
do i= 1 to 100 ;
	if mod(i,2)=0 then do;
number='Even' ;output;
		end;

	else if mod(i,2)=1 then do ;
number ='Odd';output;
	end;
	end;
run;

[Kurt_Bremser]

Don't use tabs in code, use a consistent number of blanks. SAS Studio and Enterprise Guide provide options for replacing tabs with blanks while you type code, my "fictional" tab width is always set to 2, so my recommendation for  formatted code looks like this:

data even_odd;
do i = 1 to 100;
  if mod(i,2) = 0
  then do;
    number = 'Even';
    output;
  end;
  else do;
    number ='Odd';
    output;
  end;
end;
run;

The second IF is not necessary as the MOD function with a second parameter of 2 can only return 0 or 1.

But you can make your code even simpler:

data even_odd;
length i 8 number $5;
do i = 1 to 100;
  number = ifc(mod(i,2),"Odd","Even");
  output;
end;
run;

[yabwon]

One more way of "readable" indentation would be:

data even_odd;
  do i = 1 to 100;
    if mod(i,2) = 0 then 
      do;
        number = 'Even';
        output;
      end;
    else 
      do;
        number ='Odd';
        output;
      end;
  end;
run;

Bart

[ballardw]

data even_odd;
   do i= 1 to 100 ;
      if mod(i,2)=0 then do;
         number='Even' ;
      end;

      else if mod(i,2)=1 then do ;
         number ='Odd';
      end;

/* see anything missing*/
run;

Line up your code and things are easier to see exactly where the problem is.

"Error unclosed Do block" means that you have a DO without an END