sas - group by two diff columns - sas

Question

I've the below dataset as input
ID category cust.nr cust.name income
1 a 100 Crosbie 5000
2 a 200 Heier 5500
2 a 300 Pick 5500
3 a 400 Sandridge 5100
4 b 500 Groesbeck 10000
4 b 600 Hayton 11000
4 b 700 Razor 12000
5 c 800 Lamere 90000
I need a report (f.ex using proc tabulate) as follows
In the data, cust.nr are unique but all the customers belonging to one family are given same ID, and customers are categorized based on their income.
<10000 as a
10000 to 15000 as b
'>'15000 as c
I need a report with
count of unique IDs(families), grouped by categories, and also rest of the columns need to be shown in the report.
so, it should look like
count_ID category cust.nr cust.name income
-------- ------ 100 Crosbie 5000
-------- ------ 200 Heier 5500
3 a 300 Pick 5500
-------- ------ 400 Sandridge 5100
-------- ------ 500 Groesbeck 10000
1 b 600 Hayton 11000
-------- -------- 700 Razor 12000
1 c 800 Lamere 90000
Any suggestions please..

Answer 1

You can do this easily with proc sql:
proc sql noprint;
create table results as
select category,
count(distinct id) as count_id
from mytable
group by 1
;
quit;