How to add a marker in a specific point in a seaborn lineplot?

Question

I'm plotting a simple lineplot with seaborn and I'd like to add a marker in two specific points of the lineplot.

I checked the documentation, and I know that matplotlib has some markers support ( https://matplotlib.org/3.1.0/api/markers_api.html ), but I couldn't find a solution for my problem.

I have something like this:

sns.lineplot(x="time", y="cost",
                   data=df_time)

I'd want to specify the plot to have a marker at both the rows n1 and n2. Is that possible?

Answer 1

The show a marker of the first and second point of a line plot use the markevery argument .

import matplotlib.pyplot as plt

x = [1,3,4,6,7,9]
y = [3,2,3,1,3,2]

plt.plot(x,y, marker="s", ms=12, markevery=[0,1])

plt.show()