how to set scatter plot point size after drawing the plot?

Dear all,

I draw a scatter plot.

it returns matplotlib.collections.PathCollection object. then how can I set the size of the markers?
for a matplotlib.lines.Line2D object, there is a method set_markersize which can be used to set markersize.
but no such method for matplotlib.collections.PathCollection object?

thanks et cheers,



Chao YUE
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