matplotlib ax bar color 设置ax bar的颜色、 透明度、label legend

matplotlib ax bar color

设置ax bar的颜色

d = nx.degree(g1)
print("网络的度分布为:{}".format(d))

degree_sequence_g1 = sorted((d for n, d in g1.degree()), reverse=True)
degree_sequence_g2 = sorted((d for n, d in g2.degree()), reverse=True)
import numpy as np
fig, ax = plt.subplots()
ax.bar(*np.unique(degree_sequence_g1, return_counts=True),color='b',alpha=0.3,label='tomor')
ax.bar(*np.unique(degree_sequence_g2, return_counts=True),color='r',alpha=0.3,label='normal')
ax.set_ylim(ymin = 0, ymax = 450)
ax.set_title("Degree histogram")
ax.set_xlabel("Degree")
ax.set_ylabel("# of Nodes")
ax.legend(loc = "best")
plt.show()
print('plot Degree histogram graph finished!')

matplotlib.axes.Axes.bar — Matplotlib 3.5.2 documentation