Dear all
I reask this question with more details
I have this data
x= [50;81;73;77;127;140;122;125;140;145;180;185;178;96;83;192;182;120;127];
y= [122;126;121;123;135;130;117;119;125;125;135;135;140;140;147;147;144;141;139];
y(x) = α + β10 log10(x) + ξ, : ξ ~ N(0, σ^2), random variable that accounts for shadowing variation modeled with normal distribution and standard deviation (Specifically, is a random variable that accounts for shadowing variation modeled with normal distribution and standard deviation σ, assumed equal to the standard deviation of the regression residuals).
How can I use curve fitting to find the values of α, β and ξ,
Expected Output fitting plot
Best Answer