Change combobox option to modificate graphic/chart

Question

I\'m using PyQt5 to build up a user interface to show up data from "curve_fit" method.

As the data which I\'m working can have discontinuities, my return from t

Answer 1

You have to use the draw() method of the canvas to update the painting:

def changePlot(self):
    # ...

    self.static_ax2.plot(x2_test, error_y)
    self.static_ax2.plot(x2_test, zero_y)

    self.static_canvas1.draw()
    self.static_canvas2.draw()