Individual alpha values in scatter plot

Question

I\'m wondering if it is possible to have individual alpha values for each point to be plotted using the scatter function of Matplotlib. I need to plot a set of

Answer 1

You can use the color argument and a colormap with alpha. cmap linearly increases the alpha value from 0 to 1.

import numpy as np
import matplotlib.pylab as plt
from matplotlib import colors

c='C0'

xs = np.arange(10)

fig, ax = plt.subplots(1, 1)
cmap = colors.LinearSegmentedColormap.from_list(
        'incr_alpha', [(0, (*colors.to_rgb(c),0)), (1, c)])
ax.scatter(xs, xs, c=xs, cmap=cmap, ec=None, s=10**2)

plt.show()