How to group data in different cluster

As shown in figure, it represent data received from 200 samples. each sample contain 30 different indices on X-axis while Y-axis represent its magnitude.

I want to cluster magnitude data for each X-axis index. How can it be possible.??

Thanks...

[Image Analyst]

As shown in what figure? Try going here http://snag.gy/ and paste your figure in then come back here and use the brown and green frame icon to insert your picture here.

[V Max]

sorry, i only attached but not inserted the image, now its there.

Answer 1

[Stalin Samuel]

k-means clustering

[V Max]

exactly i tried Kmeans algorithm. but doing something wrong.

actually i have to separate the reading as per 30 x-axis indices. then for each x-axis value i need to cluster data as per visible group in image.

How to plot this clustered data circularly around its mean value..