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how can I delete some rows from a matrix

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momo
momo 2024 年 4 月 5 日
回答済み: Star Strider 2024 年 4 月 5 日
Hello,
I have a matrix with 3 col and many rows, I need to to create a new matrix with only odd romws numbers and delet the pair rows.
Someone have an idea how I can do this?
Thank you very much

回答 (1 件)

Star Strider
Star Strider 2024 年 4 月 5 日
This creates a new matrix with only the odd rows from the original matrix —
A = randi(9, 10,3)
A = 10x3
4 5 3 5 5 5 7 3 9 3 4 5 5 7 8 2 4 4 3 4 3 5 2 9 2 5 3 7 4 2
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Anew = A(1:2:end,:)
Anew = 5x3
4 5 3 7 3 9 5 7 8 3 4 3 2 5 3
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See the documentation section on Matrix Indexing for more information.
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