Operate on Successive Values Without Loops
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Say I have a vector of x values, and a vector of y values. I would like to write a function to calculate the distance between successive points. I know how to do this in a loop, like the snippet given below.
for i = 1:1:size(x) - 1
distance(i) = sqrt((x(i) - x(i + 1)) ^ 2 + (y(i) - y(i + 1)) ^ 2)
end
Is there a way to do this without the loop?
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Kye Taylor
2012-5-1
Totally... first arrange your vectors as column vectors, then try
distance = sum(sqrt((x(1:end-1)-x(2:end)).^2 + (y(1:end-1)-y(2:end)).^2),2);
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