N-Dimensional and Circular Histogram Counts

Versión (4.51 KB) por Paul
Compute n-dimensional histogram counts, also supports circular dimensions.

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Actualizado 5 Apr 2015

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Given a set of n-dimensional vectors and an n-dimensional histogram, compute the number of vectors that fall into each bin. The histogram is given as rectilinear grid (i.e. the bins can vary in size along each dimension). Dimensions can also be marked as circular to create polar or cylindrical grids or their generalizations. The input vector format must match the grid, for example, if a polar grid is used, the input vectors must be given in polar coordinates. Coordinates are not converted in the function.

load clown;
[y,x] = find(X>max(X(:))*0.5);
[a,r] = cart2pol(x-size(X,2)/2,y-size(X,1)/2);
abinedges = linspace(0,2*pi,65);
abinedges(end) = [];
rbinedges = log10(logspace(0,1,65)).*(size(X,2)/2);
c = histcountsn([a,r],{abinedges,rbinedges},[true,false]);

Citar como

Paul (2023). N-Dimensional and Circular Histogram Counts (https://www.mathworks.com/matlabcentral/fileexchange/50401-n-dimensional-and-circular-histogram-counts), MATLAB Central File Exchange. Recuperado .

Compatibilidad con la versión de MATLAB
Se creó con R2014b
Compatible con cualquier versión
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Inspirado por: 2D Histogram Calculation

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