plotting points with different colors by name in matplotlib

Question

how can different points be plotted in different colors in matplotlib when the colors are named and not referred to by number? eg

import matplotlib.pylab as plt
# this fails
plt.plot([1,2,3],[4,5,6],c=["r", "k", "b"]) 

c only takes numeric values. is there a way to pass it names of colors instead?

Answer 1

我认为您需要plt.scatter ，在这种情况下，代码可以正常工作：

plt.scatter([1,2,3],[4,5,6],c=["r", "k", "b"]) 

Answer 2

Try this:

import matplotlib.pylab as plt
xx = [1, 2, 3]
yy = [4, 5, 6]
colors = ['r', 'k', 'b']
for ii in range(len(xx)):
    plt.plot(xx[ii], yy[ii], 'o', color=colors[ii])