Re: [讨论] 产生arrays

楼主: Jeffch (Jeff)   2017-03-22 06:20:13
N = 5
for n = 1:N
a{N-n+1} = repmat([ones(1,2^(n-1)) zeros(1,2^(n-1))],...
1,(2^(N-1))/2^(n-1))
end
※ 引述《GSXSP (Gloria)》之铭言:
: 我想产生
: N = 4
: a{1} = 1111111100000000
: a{2} = 1111000011110000
: a{3} = 1100110011001100
: a{4} = 1010101010101010
: N = 5
: a{1} = 11111111111111110000000000000000
: a{2} = 11111111000000001111111100000000
: a{3} = 11110000111100001111000011110000
: a{4} = 11001100110011001100110011001100
: a{5} = 10101010101010101010101010101010
: 这样的arrays
: 目前我直接
: for i=1:N
: a{i} = zeros(1,2^N);
: for j=1:2^N
: if mod(floor((j*(2^i)-1)/2^N),2) == 0
: a{i}(j) = 1;
: end
: end
: end
: end
: 有点慢, 不晓的有没有比较快的方法?

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