topic Re: Autiomate the Sum(case when ) with macro and arrays in SAS Programming

Autiomate the Sum(case when ) with macro and arrays

nxmogil — Wed, 10 May 2023 10:15:55 GMT

Hi , I would be using this code very often, please suggest an alternative way to automate it

Data cont;

input Id $ Indi $ date: mmddyy10.;

datalines;

001 green 02/23/2022

002 green 03/21/2022

001 black 04/23/2022

002 breen 06/18/2002

003 brown 05/19/2022

004 Black 08/15/2000

;

run;

proc sql;

create table indi-count as

select id,

sum(case when Indi = "green" then 1 else 0 end) as green_count,

sum(case when Indi = "black" then 1 else 0 end) as black_count,

sum(case when Indi = "brown" then 1 else 0 end) as brown_count,

from cont

group by id;

quit;

Re: Autiomate the Sum(case when ) with macro and arrays

Quentin — Wed, 10 May 2023 10:53:08 GMT

Do you need the wide format (one record per ID), or do you only need the counts? I would start with PROC FREQ:

proc freq data=cont ;
  tables id*indi/missing out=want ;
run ;

proc print data=want ;
run ;

This has the benefit of catching all the typos in the data too. : )

Re: Autiomate the Sum(case when ) with macro and arrays

nxmogil — Wed, 10 May 2023 11:01:33 GMT

Thank you for your quick response
Yeah I use proc freq some times to but when I want to give a condition that if green_count > 0 , Can I do it with oroc freq results

Re: Autiomate the Sum(case when ) with macro and arrays

PaigeMiller — Wed, 10 May 2023 11:42:52 GMT

@nxmogil wrote:

Yeah I use proc freq some times to but when I want to give a condition that if green_count > 0 , Can I do it with oroc freq results

I don't understand this. Please explain further, provide more details.

Re: Autiomate the Sum(case when ) with macro and arrays

Quentin — Wed, 10 May 2023 12:25:17 GMT

@nxmogil wrote:

Thank you for your quick response
Yeah I use proc freq some times to but when I want to give a condition that if green_count > 0 , Can I do it with oroc freq results

Yes, you could do:

proc freq data=cont ;
  tables id*indi/missing out=want ;
run ;

data want2 ;
  set want ;
  if indi='green' and count>0 ;
run ;

But for your sample data that would give you same list of IDs as:

data want;
  set cont;
  if Indi='green';
run;

I think it would be helpful if you describe more of the big picture of what you are trying to do. Also, suggest fixing the typos in your sample code to provide example code that runs without errors, and the example output you want.

Re: Autiomate the Sum(case when ) with macro and arrays

nxmogil — Wed, 10 May 2023 12:46:26 GMT

Actually my total Query is

data cont;
input ID $ Indi $ date: mmddyy10.;
datalines;
001 Green 02/23/2001
001 Black 02/24/2001
001 Green 03/18/2000
002 Green 01/19/2021
002 Green 02/19/2012
003 Red 01/11/2000
004 Black 02/12/2021
;
run;

proc sql;
create table cont as
select ID,
sum(case when Indi ="Green" then 1 else 0 end ) as Green_count,
sum(case when Indi ="Red" then 1 else 0 end ) as Red_count,
sum(case when Indi ="Black" then 1 else 0 end ) as Black_count,
sum(case when Indi ="Orange" then 1 else 0 end ) as Orange_count
from cont
group by id;
quit;

/* my business some times require a query like this */

data check;
set cont;
by id;
if Green_count> 1;
run;

My Question here is like how I am using if condition from the sql results , can i also query the same from proc freq results .