© 1995 by Biometrika Trust
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On the closed form of the likelihood function of the first order moving average model
National water Research Institute Burlington, Ontario, Canada L7R 4A6
The covariance matrix of a first order moving average process is expressed as the product of the covariance matrix of the dual autoregressive process of order one and a near identity matrix. Its inverse is then obtained. The closed form of the likelihood function is derived. A comparison is made with some approximate likelihood functions.
Key Words: Closed form of the likelihood function Moving average process
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