Linear fit with data uncertainty

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Niles Martinsen
Niles Martinsen 2012 年 6 月 22 日
Hi
Fitting a polynomial in Matlab to some data (x, y) is easy using polyfit as e.g.
p_RvsT = polyfit(r_vs_t(:, 1), r_vs_t(:, 2), 1);
However, say that my y-data has some error assigned to it. I have searched the forum, but I can't find information on how to include the errors in the y-data. I would be very happy to be pointed in the correct direction.
Best, Niles.

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回答 (1 件)

Sean de Wolski
Sean de Wolski 2012 年 6 月 22 日
How about the additional outputs in regress? Or if you're on R2012a, LinearModel? (Both of these require the Statistics Toolbox)

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