Matlab - center of gravity of a matrix

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center of gravity of a matrix

Walter Roberson

2008-01-31, 8:28 pm

In article <fntuiq$n9i$1@fred.mathworks.com>, german <nospam@yahoo.com> wrote:

>How do I calculate the center of gravity of a matrix?

[rc,cc] = ndgrid(1:size(M,1),1:size(M,2));
Mt = sum(M(:));
c1 = sum(M(:) .* rc(:)) / Mt;
c2 = sum(M(:) .* cc(:)) / Mt;

The center of gravity is then at (c1,c2) or at (c2,c1)
(I'll let you figure out which.)

--
So you found your solution
What will be your last contribution?
-- Supertramp (Fool's Overture)

german

2008-01-31, 8:28 pm

hi,
How do I calculate the center of gravity of a matrix?
thanks

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