Group data based on some given points.

I have data and some points(P). I need to extract the 10 nearest points of the P from the data based on distance. And make groups each P and its nearest elements.

I attached the data set here. How can I do that? Please help me.

Thanks in advance.

[darova]

I opened your excel file and see this

I don't see P points. I only see columns with some data

Be more specific. Make some simple drawing or something

[BHAGYALAKSHMI M]

The P is another set of points. Like

P=[1,7,0.3,...]

I am expecting,

Group1 that contains elements near to the 1 and 1 also.

Group2 that contains elements near to the 7 and 7 also.

(Group1=[0.2,0.3,0.4,0.5,1,1.6,1.8,2,2.1,3]

Group2=[1,2,4,5,6,7,8,9,10,11] etc.)

The points in p want to center (near to center) of the group.

[darova]

What about this simple construction?

ix = abs(P(i)-data1) < 2;           % group1, indices of data1 close to P(i) (smaller than 2)

[BHAGYALAKSHMI M]

Thank you Sir for your replies and answers.

I am getting some errors like

" Array indices must be positive integers or logical values.

Error in db (line 12)

ix = abs(P(i)-data1) < 2; "