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scientificComputing/regression/exercises/exp2errorsurface.m

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Matlab

expdecaydata; % generate data
close all;
cs = 0.5:0.02:1.5; % range of c values
taus = 4.0:0.2:16.0; % range of tau values
msesurf = zeros(length(taus), length(cs)); % mean squared error
for i = 1:length(taus)
for k = 1:length(cs)
msesurf(i, k) = mean((voltage - ...
exp2func(time, [cs(k), taus(i)])).^2);
end
end
%surface(cs, taus, mses)
%contour(cs, taus, mses)
contourf(cs, taus, log10(msesurf))