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Much like in Excel where we can take a distribution and make a trendline for it (power law), how can I calculate that in Java for an array of numbers?

Tetsujin no Oni
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JMH
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1 Answers1

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The package org.apache.commons.math.optimization.fitting includes CurveFitter and PolynomialFitter that will cover many of the typical excel trend line options. JFreechart includes some support for Regression.

trashgod
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  • I am getting values back, but they dont' seem to be at all inline with what i get in excel. I mean, i realize there is some imimentation variance, but orders of magnitude are different. – JMH Aug 08 '12 at 22:21
  • I've never compared the two directly. Can you edit your question to include an [sscce](http://sscce.org/) that focuses on the fit you're examining? – trashgod Aug 09 '12 at 00:08