8 lines
242 B
Matlab
8 lines
242 B
Matlab
function error = lsq_sigmoid_error(parameter, x, y)
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% p(1) the amplitude
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% p(2) the slope
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% p(3) the x-shift
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% p(4) the y-shift
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y_est = parameter(1)./(1+ exp(-parameter(2) .* (x - parameter(3)))) + parameter(4);
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error = mean((y_est - y).^2); |