| [], | 'c-mean' - The mean of A is shifted to the origin. Class priors are taken into account. | | 'mean' | - The mean of A is shifted to the origin. This is computed for the data as given in A, neglecting class priors.
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| 'c-variance' | - The mean of A is shifted to the origin and the average class variances (within-scatter) are normalized. Class priors are taken into account.
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| 'variance' | - The mean of A is shifted to the origin and the total variances of all features are scaled to 1. This is computed for the data as given in A, neglecting class priors.
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| '2-sigma' | - For each feature f, the 2-sigma interval, [f-2*std(f),f+2*std(f)] is rescaled to [0,1]. Values outside this domain are clipped. Class priors are taken into account.
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| 'domain' | - The domain for all features in the dataset A is set to [0,1]. This is computed for the data as given in A, neglecting class priors.
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