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WHAT IS LAG FUNCTION ? WHERE CAN YOU IMPLEMENT THIS
FUNCTION?

Answers were Sorted based on User's Feedback



WHAT IS LAG FUNCTION ? WHERE CAN YOU IMPLEMENT THIS FUNCTION?..

Answer / zyin2

Lag() function returns the value of the first previous
observation in a time series. It could be used in Auto
Regression analysis for time series.

For example, Let y be the cloumn name for the original time
series, the analysis for AR(2) could be:

data test;
set test;
m = lag(y);
n = lag(m);
run;
proc reg data = test;
model y = m n;
run;

Is This Answer Correct ?    10 Yes 1 No

WHAT IS LAG FUNCTION ? WHERE CAN YOU IMPLEMENT THIS FUNCTION?..

Answer / hari

Returns values from the queues

Is This Answer Correct ?    3 Yes 3 No

WHAT IS LAG FUNCTION ? WHERE CAN YOU IMPLEMENT THIS FUNCTION?..

Answer / sai

Lag function can be used if you want to perform
computations across the observations.

Is This Answer Correct ?    0 Yes 0 No

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