All Questions
4 questions
1
vote
1
answer
300
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Applying k-means over PCA
I have a dataset containing 20 columns and 200 rows. This is an unlabeled dataset and I applied PCA to this dataset for dimensionality reduction. After successfully using PCA, I received a dataset ...
- 19
1
vote
0
answers
4k
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How to plot Optics Clustering result in Matlab (reachability plot)
I modified the following script for Optics clustering ( http://chemometria.us.edu.pl/download/OPTICS.M ) in order to work with DTW distance instead than Euclidean's.
I obtained the Order vector (...
0
votes
1
answer
246
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Neighborhood analysis in Matlab using a dot plot
I have points in a 2D graph (coordinates: X,Y property: Z). I would like to find for every point the closest, for example, 5 points and save their properties.
What would be the easiest approach?
...
- 115
47
votes
4
answers
107k
views
How to interpret mean of Silhouette plot?
Im trying to use silhouette plot to determine the number of cluster in my dataset. Given the dataset Train , i used the following matlab code
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- 4,477