信号1跟随信号2 matlab

Question

假设我有

A = [0 0 0 0 1 1 1 1 1 0 0 1 1 1 1 0 0 0 1 1 1 1 1 ]
B = [0.01 0.02 0.01 0.03 0.04 0.05 0.07 0.04 0.03 0.01 0.01 0.03 0.04 0.03 0.02 0.01 0.011 0.02 0.03 0.04 0.05 0.04 0.01]

怎样才能使A符合B的最大数目?结果应该是

C = [0 0 0 0 0.07 0.07 0.07 0.07 0.07 0 0 0.04 0.04 0.04 0.04 0 0 0 0.05 0.05 0.05 0.05 0.05]

Answer 1

您可以这样使用accumarray：

subs = cumsum([diff(A) > 0, 0]).*A + 1;  %//Similar to bwlabel if you have the image processing toolbox...
maximums = accumarray(subs(:), B(:), [], @max);
maximums(1) = 0;
C = maximums(subs)

Answer 2

这就是你想做的吗？

C = A*max(B)/max(A)