topic Re: Keep all unique column value in single row in SAS Programming

Keep all unique column value in single row

abraham1 — Thu, 17 Mar 2022 21:31:35 GMT

Hi All,

I want to create new column 'new_visit' where all visit information of unique patient available with repetilike below

pid	age	visit	d1	new_visit
101	21	1	1	1, 2
101	21	2	1	1, 2
101	21	1	4	1, 2
102	34	2	1	2
103	31	1	1	1
104	25	1	2	1, 2,3
104	25	2	2	1, 2,3
104	25	3	2	1, 2,3
104	25	1	6	1, 2,3
104	25	2	5	1, 2,3

data test;
input pid age visit d1 ;
cards;
101 21 1 1
101 21 2 1
101 21 1 4 
102 34 2 1 
103 31 1 1 
104 25 1 2
104 25 2 2
104 25 3 2
104 25 1 5
104 25 2 5
 ;
run;

Re: Keep all unique column value in single row

Amir — Thu, 17 Mar 2022 21:56:09 GMT

Hi,

How about the following?

data have;
	input pid age visit d1 ;
	cards;
101 21 1 1
101 21 2 1
101 21 1 4 
102 34 2 1 
103 31 1 1 
104 25 1 2
104 25 2 2
104 25 3 2
104 25 1 5
104 25 2 5
;


data want;
	length new_visit $ 10;
	
	do until(last.pid);
		set have;
		by pid;
		
		new_visit = catx(',',new_visit,ifc(find(new_visit,cats(visit)),'',cats(visit)));
	end;
	
	do until(last.pid);
		set have;
		by pid;
		
		output;
	end;
run;

Kind regards,

Amir.

Re: Keep all unique column value in single row

abraham1 — Thu, 17 Mar 2022 22:35:51 GMT

Thank you Amir, It works perfectly.

In that code, when I format the code using proc sql, its not working. Can you guide what is the mistake I am doing as I am new.

proc format;
value abc 1='not present'
      2='Present'
      3='Available'
      ;
run;

proc sql;
	create table aa as
	select pid, age, visit format=abc., d1 
	from test;
quit;

Re: Keep all unique column value in single row

ballardw — Thu, 17 Mar 2022 22:38:59 GMT

"Not working" is awful vague.

Are there errors in the log?: Post the code and log in a code box opened with the "<>" to maintain formatting of error messages.

No output? Post any log in a code box.

Unexpected output? Provide input data in the form of data step code pasted into a code box, the actual results and the expected results. Instructions here: https://communities.sas.com/t5/SAS-Communities-Library/How-to-create-a-data-step-version-of-your-data-AKA-generate/ta-p/258712 will show how to turn an existing SAS data set into data step code that can be pasted into a forum code box using the "<>" icon or attached as text to show exactly what you have and that we can test code against.

Re: Keep all unique column value in single row

abraham1 — Thu, 17 Mar 2022 23:01:06 GMT

data test;
input pid age visit d1 ;
cards;
101 21 1 1
101 21 2 1
101 21 1 4 
102 34 2 1 
103 31 1 1 
104 25 1 2
104 25 2 2
104 25 3 2
104 25 1 5
104 25 2 5
 ;
run;

proc format;
value abc 1='not present'
      2='Present'
      3='Available'
      ;
run;

proc sql;
	create table aa as
	select pid, age, visit format=abc., d1 
	from test;
quit;

I am not getting any error or warning in log but still it is not working.

Re: Keep all unique column value in single row

Tom — Fri, 18 Mar 2022 01:42:05 GMT

That code ran fine for me.

Define what you mean by not working.

Re: Keep all unique column value in single row

Hemamalini — Fri, 18 Mar 2022 02:29:21 GMT

I don't know why the exact code is not formating the visit value in output dataset in Unix env. I can do the same with case statement which is working but not with this above aproach.

Re: Keep all unique column value in single row

ballardw — Fri, 18 Mar 2022 04:41:18 GMT

Show us the log for the data step, the proc format and the proc sql. Include the code and all the messages.

Re: Keep all unique column value in single row

Amir — Fri, 18 Mar 2022 09:11:01 GMT

Hi,

When I run the code, the table aa has been created as per the below screenshot, please show what your aa table looks like and point out what value is wrong and what you think it should be and why.

Lastly, are you sure you are looking at the table "aa" and not the table "test".

Kind regards,

Amir.