Hello,
I would like to calculate the subtraction of n and n-1
data table;
input n;
cards;
15
24
8
9
2
;
run;
and get in a table
N S
15 .
24 9
8 -16
9 1
2 -7
Thanks for your help
data table;
input n;
cards;
15
24
8
9
2
;
run;
data want;
set table;
if _n_ ne 1 then s=n - lag(n);
run;
Just add:
s = n - lag(n);
//Fredrik
data table; input n; cards; 15 24 8 9 2 ; run; data want; set table; s=dif(n); run;
data want;
set table;
want=n-lag(n);
run;
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