You can custom the appearance of the regression fit in a scatterplot built with seaborn.

In this example color, transparency and width are controlled through the line_kws={} option with the following elements:

  • color : color of the line
  • alpha : opacity value of the line
  • lw : line width
# library & dataset
import seaborn as sns
import matplotlib.pyplot as plt
df = sns.load_dataset('iris')
# plot
sns.regplot(x=df["sepal_length"], y=df["sepal_width"], line_kws={"color":"r","alpha":0.7,"lw":5})

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