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hwangnyc
Quartz | Level 8

Hi everyone,

 

I'd like to get a count of all the unique cases I have in a dataset. The code I am using is only giving me the counts but not the categories associated with it. Here is my code:

 

proc sql;
 select count(unique(ID)) as u_ID 'Number of Unique Ids'
 from MyData
 group by Age
;quit;

Here are my results:

Number of Number of Unique Ids
19
99
58
110
454
18
52
2
74
22
4
8
9
12
88
4
9
12

 

This is what I would like:

 

AgeNumber of Number of Unique Ids
019
199
258
3110
4454
518
652
72
874
922
104
118
129
1312
1488
154
169
1712

 

Any advice would be greatly appreciated! Thanks! 

1 ACCEPTED SOLUTION

Accepted Solutions
PeterClemmensen
Tourmaline | Level 20

Or

 

proc sql;
 select Age, count(unique(ID)) as u_ID 'Number of Unique Ids'
 from MyData
 group by Age
;quit;

View solution in original post

5 REPLIES 5
PeterClemmensen
Tourmaline | Level 20

Use PROC FREQ? 🙂

PeterClemmensen
Tourmaline | Level 20

Or

 

proc sql;
 select Age, count(unique(ID)) as u_ID 'Number of Unique Ids'
 from MyData
 group by Age
;quit;
Oligolas
Barite | Level 11

Hi,

as #draycut proposed you should consider using proc freq.

ods select none;
ods output oneWayFreqs=want(keep=age frequency);
proc freq data=sashelp.class;
table age;
;
run;
ods select all;

Cheers

________________________

- Cheers -

hwangnyc
Quartz | Level 8
Thanks for the response, proc freq would not work because I wanted the unique cases. Proc freq could give me the frequency for all cases.
Ksharp
Super User
Actually proc freq can do that. you need NLEVELS option;

proc freq ......    nlevels ;
........

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