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What is LAG function?How is it used? can any one explain
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Answer Posted / basha
hai gajari
this is basha from chennai no phones no mails why? what
happened man?
ok lets see answer
lag function returns value from que
ex:-
data gajari;
input chindhi 8. @@;
datalines;
1 2 3 4 5
;
run;
data rao;
set gajari;
chore=lag(chindhi);
run;
output:-
obs chndhi chore
1 1 .
2 2 1
3 3 2
4 4 3
5 5 4
ok bye
take care
basha
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