如何在plotly中的同一canvas中添加两条线？

Question

Hi I have a data frame with 3 columns

    number_of_episodes  mean_reward gamma
69995   69995   -19370.442404   0.100064
69996   69996   -19370.442404   0.100051
69997   69997   -19370.442404   0.100039
69998   69998   -19370.442404   0.100026
69999   69999   -19370.442404   0.100013

I use Plotly to plot the relationship between the number_of_episodes for each of the other two variables I can use the px.line to plot each one separately like this

fig = px.line(df, x="number_of_episodes", y='mean_reward')
fig.show()

fig = px.line(df, x="number_of_episodes", y='gamma')
fig.show()

is there a way to plot both graphs in the same canvas?

Answer 1

Since version 4.8 of Plotly you can simply call:

fig = px.line(df, x="number_of_episodes", y=['mean_reward','gamma'])
fig.show()

https://community.plotly.com/t/announcing-plotly-py-4-8-plotly-express-support-for-wide-and-mixed-form-data-plus-a-pandas-backend/40048