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How to do this below?

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Mibang
Mibang 2024-2-6
评论： Voss 2024-2-6
Suppose you have a binary sequence:
a = [0 0 1 1 1 0 0 1 1 1 1 0 0 0];
And, how can you abtain a sequence b from a?
b = [0 0 3 0 0 0 0 4 0 0 0 0 0 0];
That is, place the sum of the consequtive ones at the first location of the consecutive ones.
And, make zeros for all the other locations of ones.
Thank you,

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Voss
Voss 2024-2-6
Ran in:
One way:
a = [0 0 1 1 1 0 0 1 1 1 1 0 0 0]
a = 1x14
0 0 1 1 1 0 0 1 1 1 1 0 0 0
b = zeros(1,numel(a));
s_idx = strfind([0 a],[0 1]);
e_idx = strfind([a 0],[1 0]);
b(s_idx) = e_idx-s_idx+1;
b
b = 1x14
0 0 3 0 0 0 0 4 0 0 0 0 0 0

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