How can I group cluster data?

I have some D dimension points, say 30 points of 5 dimension each. Now i make cluster from them using "clusterdata". now i want to group them according to the cluster number. How can i do this?

Answer 1

[Rushil]

Hello

You can group your datapoints by their cluster indices after using the “clusterdata” function. Here, I assume that your data is in the form of a matrix (in this case 30-by-5). After using “clusterdata”, you can create a cell array and store all the datapoints that correspond to that cluster index using logical indices. Below is sample implementation that may help you:

data = rand(30,5); % placeholder data 
numClusters = 3; % you may change this value 
clusterIndices = clusterdata(data,'Maxclust',numClusters); 
clusteredData = cell(numClusters,1); 
 
for k = 1:numClusters 
    clusteredData{k} = data(clusterIndices==k,:); 
    fprintf('Cluster %d:\n',k); 
    disp(clusteredData{k});
end

Here is the documentation link for “clusterdata” which has been used above:

https://www.mathworks.com/help/stats/clusterdata.html