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Sort 3D data into Bins

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M 2012-9-27

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采纳的回答： Jan

Hi,

I have a matrix containing 3D position data. i.e. The first row of "A" contains the first X,Y and Z coordinate of a point. I want to create a 3D matrix (say 150 x 150 x 150 elements) and sort the positional data into these voxels. The 3D matrix elements would contain the number of points that lie in that voxel.

I'm currently using three for loops which is very slow.

Any ideas that are more efficient?

Thanks

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Jan 2012-9-27

If you post the existing code, it is easier to create a suggestion for improvements.

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Jan 2012-9-27

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https://ww2.mathworks.cn/matlabcentral/answers/49221-sort-3d-data-into-bins#answer_60146

编辑：Jan 2012-9-27

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MATLAB Language Fundamentals Matrices and Arrays Shifting and Sorting Matrices

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