Does any know the reference/link where i can find the MATLAB implementation of gap statistics for clustering as mentioned in this paper?
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4$\begingroup$ Please, don't cross-post on SO and MatlabCentral! $\endgroup$– chlCommented Jun 5, 2011 at 8:48
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2$\begingroup$ The gap statistic takes 20 lines of code or less to implement. It may be faster just to write it yourself. $\endgroup$– cardinalCommented Jun 5, 2011 at 14:45
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$\begingroup$ @chi ok will not repeat the same. $\endgroup$– LearnerCommented Jun 5, 2011 at 15:14
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1 Answer
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The Statistics Toolbox implements the gap statistic as a class in the package clustering.evaluation since R2013b:
load fisheriris;
rng('default'); % For reproducibility
eva = evalclusters(meas,'kmeans','gap','KList',[1:6])
figure;
plot(eva);
You can also use this file exchange.
answered Nov 3, 2013 at 1:02
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$\begingroup$ +1. I always have a sweet-spot for question archaeologists. On another note, R2013b seems to have really invested in the Stats toolbox functionality. I also saw a first actually usable LME implementation. $\endgroup$ Commented Nov 3, 2013 at 5:25
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$\begingroup$ The file linked does not produce the same graph for the same data set. It recommends two clusters, rather than 4 on R2011a. $\endgroup$– DrucklesCommented Apr 28, 2014 at 16:45
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$\begingroup$ Well one of them is wrong or use some variant as the algorithm to compute the gap is supposed to be deterministic :) $\endgroup$ Commented Apr 28, 2014 at 19:33