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Obtaining the significance of coefficients from polyfit

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It is a simple matter to obtain the coefficients of a simple linear relationship using polyfit. For example coeff = polyfit(x,y,1).
But is there no built-in way to also extract the significance of the coefficients?

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Star Strider
Star Strider am 27 Sep. 2018
See if the File Exchange polyparci (link) function will do what you want.

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