matlab题目：随机生成一个10×10数组x，请按如下公式计算r
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x = rand(10,10);
x_mean = mean(x,2);
delta = x-x_mean*ones(1,10);
r = zeros(10,10);
for i = 1:10
for j = 1:10
r(i,j) = sum(delta(i,:).*delta(j,:))/sqrt(sum(delta(i,:).^2)*sum(delta(j,:).^2));
end
end
x_mean = mean(x,2);
delta = x-x_mean*ones(1,10);
r = zeros(10,10);
for i = 1:10
for j = 1:10
r(i,j) = sum(delta(i,:).*delta(j,:))/sqrt(sum(delta(i,:).^2)*sum(delta(j,:).^2));
end
end
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