Package com.imsl.test.example.stat

Class ARMAOutlierIdentificationEx1

java.lang.Object

com.imsl.test.example.stat.ARMAOutlierIdentificationEx1

public class ARMAOutlierIdentificationEx1
extends Object

Performs outlier identification and simultaneously fits an \(\text{ARIMA}(2,2,0)\) to the Canadian Lynx dataset.

The data is a time series of the estimated population of Canadian lynx. Class ARMAOutlierIdentification is used to fit an \(\text{ARIMA}(2,2,0)\) model of the form \((1-B)(1-\phi_1B-\phi_2B^2)Y_t=a_t,\, t=1,2,\ldots,144,\,\) where \( \{a_t\}\) is Gaussian white noise. The compute method determines the estimates \(\hat{\phi}_1=0.10682\) and \(\hat{\phi}_2=-0.19666\) and identifies a level shift (LS) type outlier at time point \(t=16\).

See Also:

• Code
• Output

Constructor Summary

Constructors

Constructor	Description
ARMAOutlierIdentificationEx1()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ARMAOutlierIdentificationEx1

public ARMAOutlierIdentificationEx1()

Method Details

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception