2D Histogram Calculation 1.0

Operating systemsOS : Windows / Linux / Mac OS / BSD / Solaris
Program licensingScript Licensing : Freeware
CreatedCreated : Sep 14, 2007
Size downloadDownloads : 3
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function histmat = hist2(x, y, xedges, yedges)<br ...

function histmat = hist2(x, y, xedges, yedges)
Extract 2D histogram data containing the number of events of [x , y] pairs that fall in each bin of the grid defined by xedges and yedges. The edges are vectors with monotonically non-decreasing values.
The code is optimized no loop inside, it can be useful in the case of large dataset.
EXAMPLE
events = 1000000;
x1 = sqrt(0. 05)*randn(events, 1)-0. 5; x2 = sqrt(0. 05)*randn(events, 1) 0. 5;
y1 = sqrt(0. 05)*randn(events, 1) 0. 5; y2 = sqrt(0. 05)*randn(events, 1)-0. 5;
x= [x1; x2]; y = [y1; y2];
For linearly spaced edges:
xedges = linspace(-1, 1, 64); yedges = linspace(-1, 1, 64);
histmat = hist2(x, y, xedges, yedges);
figure; pcolor(xedges, yedges, histmat'); colorbar ; axis square tight;
For nonlinearly spaced edges:
xedges_ = logspace(0, log10(3), 64)-2; yedges_ = linspace(-1, 1, 64);
histmat_ = hist2(x, y, xedges_, yedges_);
figure; pcolor(xedges_, yedges_, histmat_'); colorbar ; axis square tight;
Demands:
• MATLAB Release: R13SP1

2D Histogram Calculation 1.0 scripting tags: edgesxedges, histogram calculation, yedges, spaced, sqrtrandnevents, colorbar, statistics probability, yedgesfigure, axis, histx. What is new in 2D Histogram Calculation 1.0 software script? - Unable to find 2D Histogram Calculation 1.0 news. What is improvements are expecting? Newly-made 2D Histogram Calculation 1.1 will be downloaded from here. You may download directly. Please write the reviews of the 2D Histogram Calculation. License limitations are unspecified.