Original Data Index after Clustering?

Dear all,

From a data set, i have performed clustering to identify the samples greater than a particular threshold. After performing clustering, how can I identify the samples of original data corresponding to these clusters?

I have found clusters correctly, but now I want to find the samples (indices) of original data corresponding o these clusters.

for i = 1:10 %number of datasets

Sig_Detect = SignaltoDetect(:,i);

% Finding Peaks

[g,~] = find(Sig_Detect > Threshold_IntDetect);

cluster1 = clusterDBSCAN('MinNumPoints',50,'Epsilon',40,'EnableDisambiguation',false);

idx = cluster1(g);

No_Int_PerChirp = length(idx);

fh = plot(cluster1,g,idx);

end

Kind Regards

Anum