extensive scatter plot
korn at freisingnet.de
Wed Nov 24 16:12:15 CET 2010
I would like to produce a scatter plot with roughly 200 mio points.
Because the points are so numerous I rather need a point density plot.
I use numpy. Right now I loop over the individual data points and make a
where query on a meshgrid.
ind = where((x_grid == x_points[i]) & (y_grid == y_points[i]) )
counter_grid[ind] += 1
This is really slow. I'm sure there's a better solution already out there.
More information about the Python-list