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. 2018 Aug 29;11:477. doi: 10.1186/s13071-018-3057-4

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© The Author(s). 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 6 — Transition function (an asymmetric sigmoid function) was applied to the temperature data (r² = 0.266, F_{(4, 199)} = 18.01, P < 0.001). The transition centre, denoted by the dotted vertical line in the figure = 1998.5 and transition width = 5.3 years. This means that most of the increase in temperature sum took place between 1996 and 2001