geom_smooth() Not Plotting Best Fit LIne

[williaml]

Are you after the regression line? See this:

Insert regression model into ggplot2

For this kind of questions, a quick search on stackoverflow is usually a great source of solutions. For example:

Also, your code isn't reproducible as we don't have your dataset. See:

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…