topic Re: creating sum variables in SAS Procedures

creating sum variables

CalgaryMom — Sun, 19 Apr 2015 04:45:49 GMT

I'm really new to SAS and would appreciate some help..

Re: creating sum variables

Jagadishkatam — Sun, 19 Apr 2015 13:45:04 GMT

Hope this is what you are expecting

data XY;

input x y;

ord=1;

datalines;

18 23

13 20

18 18

15 16

10 14

12 11

8 10

4 7

7 6

3 4

;

run;

proc sort data=xy;

by ord;

run;

data want;

set xy;

by ord;

if first.ord then do;

sumx=x;

sumy=y;

end;

else do;

sumx+x;

sumy+y;

end;

run;

Thanks,

Jag

Re: creating sum variables

art297 — Sun, 19 Apr 2015 14:37:09 GMT

Given your example, what do you want the result to look like?

Re: creating sum variables

art297 — Sun, 19 Apr 2015 22:59:51 GMT

Like Fareeza said, such stats are easily calculated using one of the SAS procs.

Your problem clearly looks like a homework assignment and, if the solution code is your own, your calculation formula is wrong. You would definitely have to capture and use N somewhere in your formula.

You can easily include some minor proc sql code to capture and store the desired numbers in macro variables. And you can print them in your log so that you follow your prof's preferred approach. e.g.:

proc sql;

select count(*),sum(x),sum(y),sum(x**2),sum(y**2)

into :n,:xsum,:ysum,:x2sum,:y2sum

from Question1

;

quit;

%put &n;

%put &xsum;

%put &ysum;

%put &x2sum;

%put &y2sum;

Conversely, Using the proc print approach, you could do something like the following to get the desired N:

proc print data=Question1 n='# of cases:' noobs;

sum x y x2 y2;/*get sums of variables from this table to use in your analysis-I like this way best since I can see the actual calculations*/

run;