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如何使用轴心的轴线?
原标题:How to use axline with log scale axis?

I m trying to plot a linear line through zero:

fig, ax = plt.subplots()

l2 = ax.axline(xy1=(0, 0), slope=0.3)

ax.set_xlim(0.1, 10)
ax.set_ylim(0.1, 10)

它运作良好:

“example”/

然而,如果我将比额表改为log <>/code>,则空洞:

fig, ax = plt.subplots()

l2 = ax.axline(xy1=(0, 0), slope=0.3)

ax.set_xlim(0.1, 10)
ax.set_ylim(0.1, 10)

ax.set_xscale( log )
ax.set_yscale( log )

“example2”/

问题回答

不幸的是,行动令掩盖了你从中出现的实际错误信息。 如果您将修改其法典如下:

fig, ax = plt.subplots()
ax.set_xscale( log )
ax.set_yscale( log )
ax.axline(xy1=(0, 0), slope=0.3)

你本会看到以下错误:

TypeError:  slope  cannot be used with non-linear scales

然而,如果你想像以下内容的话,你仍然能够产生这一方向:

import matplotlib.pyplot as plt
import numpy as np
fig, ax = plt.subplots()
ax.set_xscale( log )
ax.set_yscale( log )

x = np.linspace(0.1, 10, 1000)
plt.plot(x, 0.3 * x)
ax.set_xlim(0.1, 10)
ax.set_ylim(0.1, 10)

将向您提供以下数字:“entergraph





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