Julia Plotting: delete and modify existing lines

Question

Two questions in one: Given a line plotted in Julia, how can I

1. delete it from the plot and legend (without clearing the whole plot)
2. change its propert

Answer 1

You cannot do that with the Plots package. Even the "cheating" method in the answer by Pei Huang will end up with the whole frame getting redrawn. You can do this with Makie, though - in fact the ability to interactively change plots was one of the reasons for creating that package (point 1 here http://makie.juliaplots.org/dev/why-makie.html) Not sure about the other popular plotting packages for Julia.