I use 2D dataset like below,
37.0235000000000 18.4548000000000
28.4454000000000 15.7814000000000
34.6958000000000 20.9239000000000
26.0374000000000 17.1070000000000
27.1619000000000 17.6757000000000
28.4101000000000 15.9183000000000
33.7340000000000 17.1615000000000
34.7948000000000 18.2695000000000
34.5622000000000 19.3793000000000
36.2884000000000 18.4551000000000
26.1695000000000 16.8195000000000
26.2090000000000 14.2081000000000
26.0264000000000 21.8923000000000
35.8194000000000 18.4811000000000
to create a 3D histogram.
How can I find the histogram value of a point on a grid? For example, if [34.7948000000000 18.2695000000000] point is given, I would like to find the corresponding value of a histogram for a given point on the grid.
I used this code
point = feat_vec(i,:); // take the point given by the data set
X = centers{1}(1,:); // take center of the bins at one dimension
Y = centers{2}(1,:); // take center of the bins at other dim.
distanceX = abs(X-point(1)); // find distance to all bin centers at one dimension
distanceY = abs(Y-point(2)); // find distance to center points of other dimension
[~,indexX] = min(distanceX); // find the index of minimum distant center point
[~,indexY] = min(distanceY); // find the index of minimum distant center point for other dimension
