How to draw line inside a scatter plot

Question

I can\'t believe that this is so complicated but I tried and googled for a while now.

I just want to analyse my scatter plot with a few graphical features. For start

Answer 1

the p5 line should be:

p5 = axScatter.plot([1,2,3],[1,2,3], "r--")

argument 1 is a list of the x values, and argument 2 is a list of y values

If you just want a straight line, you only need to provide values for the extremities of the line.