Timeline for PCA, dimensionality, and k-means results: reaction to duplicating of variables
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 28, 2017 at 13:42 | comment | added | Krrr | I would expect the bottom right plot to be the same as with the original data clustering plot at top right but it is not. | |
| Aug 28, 2017 at 13:40 | comment | added | user166243 | your question is: "should all analysis (e.g. k-means) be run on the m PCA scores instead of the d dimensional data". But in those plots, I see that the clusters are exactly the same for clustering on original data and pc's. This is also what is predicted by the theory. So what is the question still? | |
| Aug 28, 2017 at 13:16 | comment | added | Krrr | thanks for your answer. I have edited the question with some R code and plots, perhaps the question make more sense now? | |
| Aug 28, 2017 at 12:50 | history | answered | user166243 | CC BY-SA 3.0 |