隐藏图中的 y 轴

Question

简单问题：我需要隐藏此代码生成的图中的 y 轴：

import matplotlib.pyplot as plt
import seaborn
seaborn.set(style="white")
import random

objects = [("Zachary's karate club", 78),
            ("dolphins social network", 159),
            ("C. elegans connectome", 2148 ),
            ("US power grid", 6594 ),
            ("PGP web of trust (2004)", 24316),
            ("Linux kernel source file includes", 230213),
            ("Enron emails (1999-2003)", 1148072),
            ("Internet autonomous systems (2005)", 11095298),
            ("CS collaborations (DBLP)", 18e6),
            ("Wikipedia hyperlinks", 350e6),
            ("Twitter follower graph (2012)", 20e9),
            ("Facebook social graph (2011)", 68.7e9),
            ("NSA social graph (?)", 1e11),
            ("human connectome (neuronal)", 1e14)
           ]

fig, ax = plt.subplots(figsize=(16,6))

for i, (name, radius) in enumerate(objects):
    sgn = 2 * (i % 2) - 1
    ax.annotate(name, xy=(radius,0), xytext=(radius,sgn* (0.5 + random.randint(1,12) * 0.1)), ha='center',
                arrowprops=dict(arrowstyle="->", connectionstyle="arc,angleA=0,armA=30,rad=30", facecolor='gray'),
               color="Maroon")
ax.set_xscale('log')
ax.set_xlim(1.e1,1.e15)
ax.set_ylim(0,4)
ax.axes.get_yaxis().set_visible(False)
ax.axhline(color='k', lw=1)
ax.plot([obj[1] for obj in objects], [0]*len(objects), 'ob', markersize=2)
ax.set_yticks([])
ax.tick_params(length=8)
ax.set_xlabel('edges')
seaborn.despine()
plt.show()

应该很简单，但是到目前为止我找到的所有代码示例都没有用，例如fig.axes[0].get_yaxis().set_visible(False)

Answer 1

这有点乱七八糟，但似乎得到了你想要的结果。

ax.set_frame_on(False) #Remove both axes
ax.axhline(0,color='black') #Put the x axis back

来自两个网站：

http://www.shocksolution.com/2011/08/removing-an-axis-or-both-axes-from-a-matplotlib-plot/
Draw axis lines or the origin for Matplotlib contour plot

Answer 2

左轴来自seaborn，不是matplotlib。您可以使用以下方式关闭它：

seaborn.despine(left=True)

回应 tcaswell 的以下评论：

Seaborn 将样条添加到绘图中。 despine 命令接受以下参数以删除它们。但是，您必须明确告诉它关闭左侧或底部。

seaborn.despine(fig=None, ax=None, top=True, right=True, left=False, bottom=False, offset=None, trim=False)

其中

top, right, left, bottom : boolean, optional
If True, remove that spine.

隐藏图中的 y 轴

Hiding the y-axis in this plot

python

matplotlib

seaborn