I wants to apply the outliers detection and correction method of Doornik and Oomos proposed in 2005. I have write the codes of this method and have no issue to detect the outliers by this method. I have an issue with the correction of outliers by this method. As for as the correction of Additive Level Ouliter (ALO) the correction is simple and straightforward. I have problem with correction of Additive Volatility Outlier(AVO).

Can any one explain me how to correct the AVO? 

With best regards,, Irfan malik

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