Coding to plot the Elbow Curve for the Elbow method

Question

MAT NIZAM UTI 2023-1-11

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https://ww2.mathworks.cn/matlabcentral/answers/1891970-coding-to-plot-the-elbow-curve-for-the-elbow-method

回答： Himanshu 2023-3-1

I had tested my dataset using the existing coding from https://www.mathworks.com/matlabcentral/fileexchange/65823-kmeans_opt, and it works. But, in the coding there is no code to plot the Elbow method. May I know if there is another source code that i can utilized, where the code can provide a code to plot the Elbow Curve

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Answer 1

Himanshu 2023-3-1

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https://ww2.mathworks.cn/matlabcentral/answers/1891970-coding-to-plot-the-elbow-curve-for-the-elbow-method#answer_1182430

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Hello,

I understand that you want to plot the elbow curve for k-means clustering in MATLAB.

You can follow the below code to plot the curve:

% Plot the elbow curve
figure;
% k_max is maximum number of clusters to test
% sse is the sum of squared distances
plot(1:k_max, sse, '-o');
xlabel('Number of clusters');
ylabel('Sum of squared distances');
title('Elbow Curve');