Research Article

Outlier Detection for Multivariate Multiple Regression in Y-direction

Paweena Tangjuang and Pachitjanut Siripanich

This study focuses on the outlier detection for Multivariate Multiple Regression in Y-direction however, we propose an alternative method based on the squared distances of the residuals. The proposed method refers to the robust estimates of location and covariance matrices derived from the squared distances of the residuals. The proposed method is compared to Mahalanobis Distance method, Minimum Covariance Determinant method and Minimum Volume Ellipsoid method which are used to detect multivariate outliers. An advantage of the proposed method is that it is an alternative method to solve the complicated problem of resampling algorithm in detecting multivariate outliers in Y-direction in the case of having a large sample size and correlation between the dependent variables.

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Paweena Tangjuang and Pachitjanut Siripanich, 2014. Outlier Detection for Multivariate Multiple Regression in Y-direction. Journal of Applied Sciences, 14: 2507-2515.

DOI: 10.3923/jas.2014.2507.2515

URL: https://scialert.net/abstract/?doi=jas.2014.2507.2515

Journal of Applied Sciences

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Authors

Paweena Tangjuang

Pachitjanut Siripanich

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Research Article

Outlier Detection for Multivariate Multiple Regression in Y-direction

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