Statnote 20: non-linear regression: fitting a general polynomial curve

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In some circumstances, there may be no scientific model of the relationship between X and Y that can be specified in advance and indeed the objective of the investigation may be to provide a ‘curve of best fit’ for predictive purposes. In such an example, the fitting of successive polynomials may be the best approach. There are various strategies to decide on the polynomial of best fit depending on the objectives of the investigation.

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Original languageEnglish
Number of pages3
Publication statusPublished - Mar 2010

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