How can I do a linear fit with forced slope?

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LOre
LOre 2013-3-16
I'm trying to make a best fit of data forcing the slope of a linear fitting...is it possible? How?

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Matt J
Matt J 2013-3-16
编辑：Matt J 2013-3-16
If your data are column vectors x and y and your model is
y=m*x+b
then the solution for b would simply be
b_fit = mean(y-m*x);

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