How do I pick selected values in a matrix
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I have generated the following matrix:
A =
0 0 0 0 0 2 2 2 0 0 2
0 2 0 2 0 0 0 0 0 2 0
2 2 0 2 2 0 0 2 2 2 2
2 2 0 0 0 2 2 0 2 0 2
2 2 2 0 0 2 2 0 2 0 0
2 2 2 0 2 0 0 2 2 2 0
2 2 2 2 2 2 2 2 2 2 0
2 2 2 0 2 2 2 2 0 2 2
2 0 2 0 2 2 2 2 2 0 0
2 2 2 2 2 2 2 2 0 2 2
How do I only select the zero values in the matrix?
2 件のコメント
the cyclist
2023 年 3 月 27 日
編集済み: the cyclist
2023 年 3 月 27 日
When you say, "only select the zero values", can you be specific about what you want the output to be? Don't just rephrase it as something like, "I only want the zeros". Say exactly what the output should be.
採用された回答
the cyclist
2023 年 3 月 27 日
You want the fraction of zeros in the array?
A = ...
[0 0 0 0 0 2 2 2 0 0 2
0 2 0 2 0 0 0 0 0 2 0
2 2 0 2 2 0 0 2 2 2 2
2 2 0 0 0 2 2 0 2 0 2
2 2 2 0 0 2 2 0 2 0 0
2 2 2 0 2 0 0 2 2 2 0
2 2 2 2 2 2 2 2 2 2 0
2 2 2 0 2 2 2 2 0 2 2
2 0 2 0 2 2 2 2 2 0 0
2 2 2 2 2 2 2 2 0 2 2];
mean(A==0,"all")
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