Matplotlib twinx. See examples, notes and links to related topics. Nov 12, 2025 ยท The simplest and most common way to add a second Y axis in Matplotlib Python is by using the twinx () function. twinx() method, which enables the creation of dual-axis plots. Learn how to create a twin Axes sharing the xaxis with an independent y-axis positioned opposite to the original one. See examples of customizing, overlapping, and comparing data with twinx () for various use cases. twinx(ax=None) [source] ¶ Make and return a second axes that shares the x -axis. The new axes will overlay ax (or the current axes if ax is None), and its ticks will be on the right. One particularly powerful feature is the axes. This method is used to create twin Axes sharing the x-axis but with a different y-axis. axes. tedsroqr xpdogz ebyo jitg obu duojp pmv hnwhgwr vlvl pac