*TimeSeries 중간정리*
시계열자료를 모형과 하는 방법은 선형 및 비선형, 여러 함수 형태가 있다.
그 중에서 선형 방법을 알아보고자 한다.
data ddd;
a1=0.0;
do t=1 to 100;
a=rannor(1234);
z=a-0.6*a1;
output;
a1=a;
end; run;
proc sgplot;
series x=t y=z ; refline 0 /axis=y ; xaxis label="time"
values=(0 to 100 by 20) ;
yaxis label="Z(t)" ;
run;
data ddd;
a1=0.0;
do t=1 to 100;
a=rannor(1234);
z=a-0.6*a1;
output;
a1=a;
end; run;
proc sgplot;
series x=t y=y ; refline 0 /axis=y ; xaxis label="time"
values=(0 to 100 by 20) ;
yaxis label="Z(t)" ;
run;
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