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fit data with a line

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Sarah Smith
Sarah Smith 2020-6-19
评论： darova 2020-6-19
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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-6-19
Try something like this
x = linspace(0, 1, 100);
y = 3*x + 2 + rand(size(x));
pf = polyfit(x, y, 1);
y_pred = polyval(pf, x);
r2 = rsquare(y, y_pred); % R-squared
sse = sum((y-y_pred).^2); % SSE

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