Is there any other way than manually updating the noise parameter such that the algorithm re runs for every parameter and then plots the graph ?
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kitty varghese
am 30 Nov. 2017
Kommentiert: Stephen23
am 12 Dez. 2017
I have the following code where the noise parameter changes in an interval of 0.01.I want to plot the graph without manually re-entering all the data.x axis will be 0.01-0.10 and y axis will be RMSE
V_test=imnoise(V_test,'gaussian', *0.01*);%changing 0.01 till 0.10
V_test = V_test - mean(V_test(:));
V_test = V_test / sqrt(mean(V_test(:).^2));
V_test = V_test + 0.25;
V_test = V_test * 0.25;
V_test = min(V_test,1);
V_test = max(V_test,0);
H_test=abs(randn(49,472)); %multiplicative step H_test = H_test.*(W_test'*V_test)./(W_test'*W_test*H_test + 1e-9); error=sum((V_test- W_test*H_test).^2)/(sum(V_test).^2); % Errors RMSE = sqrt(error);%store this value
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Stephen23
am 30 Nov. 2017
Bearbeitet: Stephen23
am 12 Dez. 2017
Use a loop:
vec = 0.01:0.01:0.10; % or whatever step size you need.
out = nan(size(vec));
for k = 1:numel(vec)
V_test = imnoise(V_test,'gaussian', vec(k));
... the rest of your code
out(k) = sqrt(...);
end
2 Kommentare
Stephen23
am 12 Dez. 2017
@kitty Varghese: Why do you think that my answer needs : ? On each iteration you need to provide one value from vec, as my answer shows.
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