topic Re: variable consecutively counts account_number in SAS Programming

variable consecutively counts account_number

Angel_Saenz — Thu, 22 Feb 2018 16:32:58 GMT

Hi, how can I generate a variable that consecutively counts the variable id? If I have a dataset where account_number is not unique.

Example I want:

varCONS account_number

1 1

2 1

1 2

2 2

3 2

1 3

1 4

2 4

3 4

4 4

If you can help me with two metods, data step and proc sql could be great, thanks

Re: variable consecutively counts account_number

PaigeMiller — Thu, 22 Feb 2018 16:47:11 GMT

It sure would help if you specified the criteria by which we do the counting, instead of us having to figure out what you want (and possibly get it wrong and waste our time and everyone else's time).

So I'm going to guess that whenever you see the number 1, you increment the account_number. Is that right????

Here's some code to do this.

data want;
     set have;
     if varcons=1 then account_number+1;
run;

As far as SQL goes, I think it is folly to try to do this in SQL, and so I provide no example.

Re: variable consecutively counts account_number

SuryaKiran — Thu, 22 Feb 2018 17:31:45 GMT

DATA HAVE;
infile datalines;
input id;
datalines;
1
1
2
1
2
3
3
4
1
;
run;

proc sort data=have ;
by id;
run;
data want;
set have;
by id;
if first.id then account_num=1;
else account_num+1;
run;

Re: variable consecutively counts account_number

Angel_Saenz — Thu, 22 Feb 2018 17:33:38 GMT

Thanks for your answer, but no, I dont want increment the account_number, I have a dataset with some account numbers that are not unique, some like this:

account_number

So I want count this for each account_number:

account_number var_I_WANT

1 1

1 2

1 3

2 1

3 1

3 2

3 3

3 4

4 1

4 2

4 3

Re: variable consecutively counts account_number

SuryaKiran — Thu, 22 Feb 2018 17:36:34 GMT

@Angel_Saenz didn't my solution answer your question. Why do you look for PROC SQL also id DATA Step can solve?

Re: variable consecutively counts account_number

Angel_Saenz — Thu, 22 Feb 2018 18:02:22 GMT

let me try your solution SuryaKiran

I look a PROC SQL too because I have other plataform and in there only works SQL

Re: variable consecutively counts account_number

HB — Thu, 22 Feb 2018 18:10:27 GMT

@SuryaKiran 's solution is the way to go.

It can be done in SQL, just not in SQL that is supported inside SAS.

http://sqlfiddle.com/#!18/26c26/6

Re: variable consecutively counts account_number

SuryaKiran — Thu, 22 Feb 2018 19:42:38 GMT

Try this:

DATA HAVE;
infile datalines;
input id;
/*row=monotonic();*/
datalines;
1
1
2
1
2
3
3
4
1
;
run;

proc sql;
create table want as
select a.ID,count(*) as count
from  (select ID,MONOTONIC() AS Row 
           from have) a
left join (select ID,MONOTONIC() AS Row 
             from have) b
	on a.id=b.id and a.row>=b.row
group by a.id,a.row
;
quit;

Re: variable consecutively counts account_number

Angel_Saenz — Thu, 22 Feb 2018 22:57:36 GMT

Let me try it SuryaKiran, I accepted other your answer, thanks a lot