I’m working on a Python project for portfolio optimization using the PyPortfolioOpt library. When I try to import the plotting module and plot the efficient frontier, I get the following error:

I’m working on a Python project for portfolio optimization using the PyPortfolioOpt library. When I try to import the plotting module and plot the efficient frontier, I get the following error:

I’m working on a Python project for portfolio optimization using the PyPortfolioOpt library. When I try to import the plotting module and plot the efficient frontier, I get the following error:

I’m working on a Python project for portfolio optimization using the PyPortfolioOpt library. When I try to import the plotting module and plot the efficient frontier, I get the following error:

I would like to plot two columns of a dataframe against one column. The values in these columns are a wide range of numbers.

im trying to draw closed contour around axis graph using x y coordinates, and my graph looks bad like a long line.
what im missing?

im trying to draw closed contour around axis graph using x y coordinates, and my graph looks bad like a long line.
what im missing?

With Code:
df[['Store','Year','Weekly_Sales']].groupby(['Store','Year']).sum().plot.bar()
I get plot:
enter image description here