[HP-12C] Angular coefficent from linear regression off by 1
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05-12-2016, 10:20 PM
Post: #25
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RE: [HP-12C] Angular coefficent from linear regression off by 1
(05-06-2016 01:11 PM)Dieter Wrote: ...direct solution using the six registers is inherently more exact. As long as these data do not have too many significant digits (which usually is the case with empirical data) the results are exact. Even in the last digit. May I can spend a short time to check what does it mean in the regression coefficients if each data has a given relative error. Let's say the relative error approx. 1E-3 (=0.1%) in the engineering practice and we have n measuring points (n=5 ... n=9 typical number of data) what is the relative error of slope and intercept. Csaba |
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