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. 2010 Apr 27;5(4):e10207. doi: 10.1371/journal.pone.0010207

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Kumasaka et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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The polygonal line specified by shows the observation for th individual, and horizontal line specified by is the ideal coordinate for th individual. The squared sum of Euclidean distance between the polygonal line and the horizontal line on each axis is minimized for all individuals simultaneously.

Inline graphic — The polygonal line specified by shows the observation for th individual, and horizontal line specified by is the ideal coordinate for th individual. The squared sum of Euclidean distance between the polygonal line and the horizontal line on each axis is minimized for all individuals simultaneously.