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python Programming Glossary: zdEfficient method of calculating density of irregularly spaced points http://stackoverflow.com/questions/6652671/efficient-method-of-calculating-density-of-irregularly-spaced-points plt1 fig.add_subplot 221 plt1.set_axis_off t0 time.clock zd xe ye np.histogram2d yl xl bins 10 range view_ymin view_ymax.. 'numpy.histogram2d ' str time.clock t0 sec plt.imshow zd origin 'lower' extent view_xmin view_xmax view_ymin view_ymax.. 256 yi np.linspace view_ymin view_ymax 256 t0 time.clock zd grid_density_kdtree xl yl xi yi 70 plt.title 'function of 5..
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