Problem 2259. Best Fit RMS

Swapnali Gujar

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Given a set of data as x and y, find the RMS value between the data and its best fit curve from a first degree polynomial

Example

 x = [1:10]
 y = [2 7 3 5 9 11 1 6 2 0]

 bestfit_RMS = 3.3379

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103 Solutions

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Last Solution submitted on Nov 28, 2025

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Ned Gulley on 31 Mar 2014

Nice problem Swapnali! Since it has a floating-point answer, you should specify how many significant digits you're looking for, or include a tolerance term in your test suite.

Swapnali Gujar on 1 Apr 2014

Thanks Ned. Can you please show me how can I add a torelance term for the answer in test suite?

Ryan on 3 Apr 2014

something like this:
assert(abs(BestFit(x,y)-y_correct)<1e-5)

rifat on 16 Jun 2014

please allow for tolerance in precision of test case answers

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