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How to use regression?

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Ghazal Hnr
Ghazal Hnr 2017-3-12
评论： Walter Roberson 2017-3-12
I have 2 vectors and i want to obtain a correlation between them like y=ax+b by using regression, but i don't know how to use this code. would anyone help me with this?

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Walter Roberson
Walter Roberson 2017-3-12
coeffs = polyfit(FirstVector, SecondVector, 1);
Then coeffs(1) will be your a, and coeffs(2) will be your b.
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Ghazal Hnr
Ghazal Hnr 2017-3-12
thank you very much
Walter Roberson
Walter Roberson 2017-3-12
Note that when I say "a different way of writing the same thing", I mean that polyfit() really does construct those matrices and use the \ operator.

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