Appending data

[rajat1]

Make 2 separate data sets containing the variable

1.  unique id ,Manufacturer,model

2. unique id  and remaining variable

I AM NOT HAVING A UNIQUE ID IN MY DATA SET IN  THIS CASE . WHAT SHOULD I DO ?

Data set is :-

Manufacturer	Model	Sales in thousands	4-year resale value	Vehicle type
exc	sds	111.313	11.26	Car
abc	fgfvg	101.323	.	Car
xxx	dfrg	181.749	12.025	Car
aaa	Escort	70.227	7.425	Passenger

code:

Data a_sales ;
set _class_s.a_sales;
keep  Manufacturer Model ;
run;  

proc print data=a_sales;
run;

             
Data a_sales ;
set _class_1.a_sales;
drop Manufacturer Model ;
run;

proc print data=a_sales;
run;

[jklaverstijn]

It would help if you more clearly explained your problem. I go by the assumption that you do not have a unique id and want a way to make one.

"If" manufacturer and model together are unqiue, this would be one way:

Data a_sales ;
set _class_s.a_sales;
keep  Unique_id Manufacturer Model ;
Unique_id = md5(cats(Manufacturer, Model));
run;  

proc print data=a_sales;
run;

             
Data a_sales ;
set _class_1.a_sales;
drop Manufacturer Model ;
Data a_sales ;
set _class_s.a_sales;
keep  Manufacturer Model ;
run;  

proc print data=a_sales;
run;

             
Data a_sales ;
set _class_1.a_sales;
drop Manufacturer Model ;
Unique_id = md5(cats(Manufacturer, Model));
run;

proc print data=a_sales;
run;



run;

proc print data=a_sales;
run;

MD5() or it's more modern sibling SHA256() make a hash of it's character argument in a reproducable way. Another approach would take the row number but that can change and is not my preference. But it's up to you.

Hope this helps,

- Jan.