cluster plotting in matlab

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Jay Hanuman
Jay Hanuman 2016-12-19
评论： the cyclist 2016-12-19
I attached data file of n*4 size. I used
[idx,C] = kmeans(X,3)
for clustering and obtain idx as cluster index and C as centroid, but I want to plot which shows these three clusters. how to do it.

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回答（1 个）

the cyclist
the cyclist 2016-12-19
The documentation for kmeans gives several examples of plotting the output (including the code to do so).
  2 个评论
Jay Hanuman
Jay Hanuman 2016-12-19
in Documentation cluster plotting given only for 2 variable, but I have 4 variable data so I don't know how to do it for 4 variable
the cyclist
the cyclist 2016-12-19
It is of course not possible to plot four spatial dimensions. The main alternatives would all involve plotting some projection of your data onto a smaller number of dimensions. Possibilities are
  • Use plot3 or scatter3 to plot 3 out of 4 dimensions, each in turn
  • Just use plot as in the example, and plot each pair in turn

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