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. 2014 Jun 13;109(506):613–623. doi: 10.1080/01621459.2013.870905

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© Giorgos Minas, John Aston, Nigel Stallard.

This is an open access article distributed under the Supplemental Terms and Conditions for iOpenAccess articles published in Taylor & Francis journals, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The moral rights of the named author(s) have been asserted.

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Figure 3. — Power and RSSR versus Mahalanobis distance. We plot the z*-test (green ––) with the tests z⁺ (orange –.) (up left), sequential z (cyan −) and χ² (magenta ) (up right), single stage z (blue –) and χ² (red ) (down left) and sequential χ² (down right). The linear combination z*/z / z⁺ tests are performed with first stage/fixed/first step weighting vectors having 0 (×), 30° (○), 60° (□), and 90° (∇) angle to the optimal. The remaining design parameters are J = 2, K = 10, α = 0.05, α_1,1 = 0.01, α_0,1 = 1, n_T = 30, r = 0.5, n₀ = 0.75n₁, ν₀ = n₀ − 1.

Inline graphic — Power and RSSR versus Mahalanobis distance. We plot the z*-test (green ––) with the tests z⁺ (orange –.) (up left), sequential z (cyan −) and χ² (magenta ) (up right), single stage z (blue –) and χ² (red ) (down left) and sequential χ² (down right). The linear combination z*/z / z⁺ tests are performed with first stage/fixed/first step weighting vectors having 0 (×), 30° (○), 60° (□), and 90° (∇) angle to the optimal. The remaining design parameters are J = 2, K = 10, α = 0.05, α_1,1 = 0.01, α_0,1 = 1, n_T = 30, r = 0.5, n₀ = 0.75n₁, ν₀ = n₀ − 1.