topic Re: do loops in SAS Data Science

do loops

RajasekharReddy — Fri, 18 Apr 2014 08:36:16 GMT

can any one explain do loop working sceneria in follwing citation

data xx;

do i= 01 to 04;

j=01 to 04;

output;

end;

run;

Re: do loops

Kurt_Bremser — Fri, 18 Apr 2014 08:49:23 GMT

There is no "working scenario", because:

20	do i= 01 to 04;
21
22	j=01 to 04;
	__
	388
	202

ERROR 388-185: Expecting an arithmetic operator.

ERROR 202-322: The option or parameter is not recognized and will be ignored.

Re: do loops

yeliu — Fri, 18 Apr 2014 14:01:09 GMT

I think the program is either trying to do this:

data xx;

do i= 01 to 04;

j=i;

output;

end;

run;

or:

data xx;

do i= 01 to 04;

do j= 01 to 04;

output;

end;

run;

Re: do loops

Jagadishkatam — Fri, 18 Apr 2014 14:17:59 GMT

As per the code provided by @yeliu , first the internal do loop of j will execute and then the outer loop of i.

Thanks

Jag

Re: do loops

RajasekharReddy — Sat, 19 Apr 2014 13:42:44 GMT

thanks for clarifying code however i am asking how works do loops in sas with diffrnc scenerios likewe put "output" after "end"and before "end"

Re: do loops

Tom — Sat, 19 Apr 2014 13:46:10 GMT

Why not just runs some test programs and find out?

Re: do loops

RajasekharReddy — Sat, 19 Apr 2014 14:11:08 GMT

i had run some test programs but i can't understand do loop working method in sas

Re: do loops

RajasekharReddy — Sat, 19 Apr 2014 14:11:50 GMT

can any one send link foe base do loops working method in

sas

Re: do loops

Tom — Sat, 19 Apr 2014 16:53:46 GMT

Post an example of the code you tested and a specific question about it.

A simple iterative DO loop like in your original question work the same as in any other language.

The DO statement in SAS actual has many variations and can be extremely powerful, but without more details of what you are trying to do it is hard to give specific advice.

Here is link to on-line document for the iterative form of DO.

SAS(R) 9.4 Statements: Reference, Second Edition