why ismember() does not return correct result
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Hello, I have an original matrix M ( Nx3 ) and another one mat ( Kx3 ). I want to have access to the indicies of rows of the original matrix, M, where the rows of the matrix mat also exist in matrix M. My code is:
idx = find(ismember(M, mat, "rows"))
While most of the rows of mat are correctly returned some rows do not. The common theme is that all of them have the third element equal (1.6).
The array mat:
Rows of array M: ( the row [-2.5 1.65 1.6] exists in the array ! )
Is this a floating point problem ?
Thanks
1 个评论
Dyuman Joshi
2023-10-11
采纳的回答
Star Strider
2023-10-10
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They may have very small values that are not shown, especially if they are calculated.
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