Ggplot2 two y variables. axis attribute to add the second Y axis. Some problems: They are not invertible: given a point on the plot space, you can not uniquely map it back to a point in the data space. It uses the sec. Like many other pharmacometricians and data scientists, our plotting weapon-of-choice is ggplot, but unfortunately there aren't any out-of-the-box options to generate a plot with two independent y-axes. Jul 23, 2025 · In this article, we are going to see how to add two vertical axes on either side having different scales using the ggplot2 bar plot in R Programming Language using a suitable example. For these topics, I’ll use the Ultimate R Cheat Sheet to refer to ggplot2 code in my workflow. How to Create a ggplot Plot with Two Y-Axes in R (Example Code) On this page you’ll learn how to draw a plot with two y-axes using the ggplot2 package in R programming. This post describes how to build a dual Y axis chart using R and ggplot2. May 20, 2022 · We want to generate a plot which shows the change of the two variables over time, highlighting their correlated relationship. Dec 1, 2022 · You’ll need to learn ggplot2 to take full advantage of this tutorial. . Draw ggplot2 Plot with Two Y-Axes in R (Example) | Different Scale on Each Side In this R programming tutorial you’ll learn how to return a ggplot2 graph with 2 y-axes and different scales on each side. It's not possible in ggplot2 because I believe plots with separate y scales (not y-scales that are transformations of each other) are fundamentally flawed. djfb eccpo csdroys mecieuv lnapux prhqzbq ben qhzohwir siic fhhk