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Errors for the slope and intercept

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Marisabel Gonzalez
Marisabel Gonzalez 2018-12-3
回答： Star Strider 2018-12-3
How can I get the uncertainty for the slope and intercept when using this code
Const = polyfit(log10(x),log10(y), 1);
m = Const(1);
k = Const(2);
b_fit = (10^k) * (x.^m4);

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Walter Roberson
Walter Roberson 2018-12-3
use the two output form of polyfit and the two output form of polyval
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Walter Roberson
Walter Roberson 2018-12-3
okay so when you call polyval pass in log10 of the x locations and the second output will reflect that log space .

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Star Strider
Star Strider 2018-12-3
Consider the File Exchange contribution polyparci (link).

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