Do but not %do

[supersonic]

Can anyone please give an example where a do loop can be used but %do loop cannot be used

[kuridisanjeev]

Hi..

%Do can be used only with in the Macro,but in case of Do,you can use any where of the program even with in the macro.

which means you can not use %do in open code..

Data Test;

%do i=1 %to 10;

output;

%end;

Run;

Above code gives you error,so in above scenario you need to use Do.

Hope this helps..

Regards.

Sanjeev.K

[kuridisanjeev]

Edited my post and given small example too..

Hope that is what you looking for..

Regards.

Sanjeev.K

[Ksharp]

You can do it:

do i=1 to 10 by 0.1 ;

But you can not do it:

%do i=1 %to 10 by 0.1;

[supersonic]

thank u

do i=1,2,3;   will work

%do i=1,2,3;  will give an error

[kuridisanjeev]

Ohhh too good to know that..

But why we can't use By in %do ??

is there any reason ???

Regards.

Sanjeev.K

[Astounding]

You can use %BY, but you can't use a decimal fraction like 0.1.

The last construction where DO can be used but %DO cannot is a combination of a range with WHILE or UNTIL.

Legitimate:     do i=1 to 10 until (age > 21);

No good:          %do i=1 %to 10 %until (&age > 21);

You can use %DO %WHILE or %DO %UNTIL, you just can't combine that with a range of values.