Scatter plot with a huge amount of data

Question

I would like to use Matplotlib to generate a scatter plot with a huge amount of data (about 3 million points). Actually I\'ve 3 vectors with the same dimension and I use to

Answer 1

You could take the heatmap approach shown here. In this example the color represents the quantity of data in the bin, not the median value of the dS array, but that should be easy to change. More later if you are interested.