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Algorithm for obtaining an approximate equation of a graph based on a set of points

I have a MySQL database with many constantly updated datasets that are usually compatible with a linear or quadratic pattern. Are there existing libraries, mainly with PHP, that I can use to evaluate equations from a set of data points to predict future data points?

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I can’t answer about libraries, but the main process is linear regression . ”This process is not so difficult, so you can probably write your own quickly enough. Aside, Postgres may have built-in statistical functions that do this, MySQL can have something like that, at least now you know what to look for.

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