Question

很抱歉，如果这是一个重复的问题，我找不到任何适用于我的代码（对此仍然很新！）

我想移动x轴与y = 0对齐，谢谢！

import numpy as np
import matplotlib.pyplot as plt
import seaborn as sns

values = pd.read_csv(r'C:\Project\Mech_Data.csv', index_col=0)
g = sns.lmplot(x="mean", y="difference", hue="Group", markers=["o", "x"], data=values, palette=colors, fit_reg=False, legend=False)
plt.xlim(xmin=0)

plt.plot([0, 1400],[127.5461,127.5461], linewidth=2, color='#f1e4d1',linestyle=':') #mean
plt.plot([0, 1400],[-217.3879288,-217.3879288], linewidth=2, color='#f1e4d1',linestyle='-.') #-SD
plt.plot([0, 1400],[472.4801288,472.4801288], linewidth=2, color='#f1e4d1',linestyle='-.') #+SD

leg = plt.legend(loc='upper left')
leg.get_frame().set_edgecolor('b')

plt.title('Bland-Altman', loc='left', fontsize=12, fontweight=0, color='#512443')
plt.xlabel('Mean')
plt.ylabel('Difference')
plt.tight_layout()

plt.show()

Output plot

Answer 1

您需要在plt.show()来电之前添加以下行。

# get the axis 
ax = plt.gca()

# enforce placement of x-axis at y=0
# option 1)
ax.spines['bottom'].set_position('zero')

# option 2)
ax.spines['bottom'].set_position(('data', 0.))

Bland-Altman图将x轴移动到y = 0

1 个答案: