matlab implementation of k-means algorithm

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how to implement k-means algorithm in matlab

Posted 3-Jan-12 22:57pm

abhilash5

Updated 3-Jan-12 23:01pm

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Mehdi Gholam 4-Jan-12 4:58am

Please do not use UPPERCASE as it is considered rude.

2 solutions

Solution 3

You can see Matlab's kmeans, just press 'edit kmeans'.
Here, are a lot of imprementations of kmeans:
http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=kmeans
And here is an example how to reduce colors using kmeans:
http://imageprocessingblog.com/?p=178

Posted 5-Jul-13 22:13pm

Member 10112838

Updated 5-Jul-13 22:15pm

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Manfred Rudolf Bihy · Accepted Answer · 2012-01-03T23:05:00

Solution 1

Have a look at this web site: http://www.mathworks.com/matlabcentral/fileexchange/16762-k-means-algorithm-demo[^]. It looks as if it provides what you are looking for.

Regards,

Manfred

Posted 3-Jan-12 23:05pm

Manfred Rudolf Bihy

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abhilash5 4-Jan-12 5:35am

m getting the error as ??? Undefined function or method 'simple_kmeans' for input arguments of type
'double'. wen i tried the demo code of k-means wch ws in th spefied link

Manfred Rudolf Bihy 4-Jan-12 8:44am

Did you download both files: simple_kmeans and km_demo.m?
If you can't read you really shouldn't be using computers. ;P
:)

abhilash5 9-Jan-12 0:53am

ya man i knw wat u tellin... thing is m new to matlab.... i have downloaded both th code but wat m askin is hw to run the code n hw to linl demo n simple k-means s=code????

abhilash5 9-Jan-12 1:27am

> demo
??? Undefined function or variable 'km_demo'.

Error in ==> demo at 1
km_demo.m

proto =

0.1760 6.1238 -0.0857
-0.0483 -0.0681 -0.1050
0.0336 -0.0822 6.0765
6.0401 0.0264 -0.0227

Nproto =

102
198
300
500
ths is hw m gettin wen u run demo.m
and wen i run simple kmeans the error is
??? Input argument "X" is undefined.

Error in ==> simple_kmeans at 2
[Ndata, dims] = size(X);
pls do needfull