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From: breezezhaoeei on 9 Apr 2010 13:37
Hi~

I try to calculate school percentage of minority kids. I have a dummy
variable minority.

I use this two:


proc freq;
by schoolid;
tables minority;
run;
(dataset is sorted)

proc means;
class schoolid;
var minority;
run;


Then I checked school #101, the first program gives me a percentage of
0.18367 (=18/98), and the second one gives me percentage of 0.18919. I
don't know where this 0.18919 is from.
I have 103 kids in school #101, 5 of these missing minority
information.

I don't know which result is correct.


Thanks,
Qingfeng

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