MATLAB: Number of elements of clusters from dbscan cluster elementsdata miningdbscan How to get the elements of clusters from a dbscan clustering.Like, Clust1=[1,2,0.3,0.1….] Clust2=[4,…..] etc. How can I do that? Please help me. Thank you. Best Answer This example code read data from the excel file. Change column two from text to numeric and then apply dbscan clustering.data=readtable('Liverxl.xlsx', 'ReadVariableNames', false);data.Var2 = findgroups(data.Var2); % convert column data.Var10(isnan(data.Var10)) = 0; % place 0 in empty cellsminpts=3;epsilon=30;data = table2array(data);[idx, corepts] = dbscan(data,epsilon,minpts);number_of_clusters = sum(unique(idx)>0);% remove oulierscore_data = data(corepts, :);core_idx = idx(corepts);% Clusters are saved in a cell arrayclusters = splitapply(@(x) {x}, core_data, core_idx);Tune the value of parameters, minpts and epsilon to change the size and number of elements in clusters. Related SolutionsMATLAB: Core points of dbscan clustering. Although this question is old, however, it is similar to your other question I answered. Therefore, If someone is searching for a solution to this question, please refer to my answer on a similar question:https://www.mathworks.com/matlabcentral/answers/509704-number-of-elements-of-clusters-from-dbscan#answer_419114 MATLAB: The count of output clusters I would think max(idx) should tell you the number of clusters dbscan found.For linkage, I think this is easiest if you use the cluster function. This example comes from the documentation.X = rand(20000,3);Z = linkage(X,'ward');c = cluster(Z,'Maxclust',4);scatter3(X(:,1),X(:,2),X(:,3),10,c)Therefore, max(c) should tell you the number of clusters. Related QuestionCore points of clustersAssigning a new data point to a cluster in hierarchical clusteringFormation of higher dimensional subspace clustersRetrieve data from column plus xHelp on Hierarchical Clustering
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