dec2bin ast n=25
조회 수: 1 (최근 30일)
이전 댓글 표시
Dear all, I want to create a matrix including number 0 and 1. but only 10 number 1 in a row. for example:
A=[1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1
0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
......]
|but with command dec2bin, the limitation is only to n=20 because if n=25, it's over the memory of computer with this inform "Requested 1073741823x1 (8.0GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. See array size limit or preference panel for more information". | Could we have another way to make this matrix. Thanks
댓글 수: 0
채택된 답변
Walter Roberson
2017년 6월 14일
N = 20;
chunksize = 2^10; %must divide 2^N
ten1s = [];
for K = 0 : chunksize : 2^N - 1
this_chunk = K : K + chunksize - 1;
these_bits = dec2bin(this_chunk, N);
mask = sum(these_bits == '1', 2) == 10;
ten1s = [ten1s; uint8(these_bits(mask,:) - '0')];
end
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Matrices and Arrays에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!