如何使用 statsmodels 指定在 qq plot 中绘制的 line='s' 或 line=45 线的颜色

Question

import statsmodels.api as sm
sm.qqplot(residuals, line ='s',dist='norm',color='g',fmt='.g')
plt.grid()

I am unable to change the color of the "red line" to a color of my choice by using arguments like linecolor and such.

Answer 1

I could not find any answer which could change the color from sm.qqplot directly. So I tried by storing the plot in a subplot and then changing the color of the line from there.

fig, ax = plt.subplots(1, figsize=(7,4.5))

sm.qqplot(data, line ='45',dist='norm',color='g',fmt='.g', ax=ax)
ax.grid()
ax.set_title('data_qq',fontsize=15)
ax.xaxis.get_label().set_fontsize(12)
ax.yaxis.get_label().set_fontsize(12)
ax.get_lines()[1].set_color("black")
ax.get_lines()[1].set_linewidth("2")

• I am still interested to know if there is a way to do this from within sm.qqplot command.