Scatter plots, best fit lines (and regression to the mean)
Map a variable to marker feature in ggplot2 scatterplot – the R Graph Gallery
Create a Scatter Plot in R with Multiple Groups - Finance Train
ggplot2.scatterplot : Easy scatter plot using ggplot2 and R statistical software - Easy Guides - Wiki - STHDA
Create Legend in ggplot2 Plot in R (2 Examples) | Add Legends to Graph
Mastering R Plot – Part 1: colors, legends and lines | DataScience+
Add legends to plots in R software : the easiest way! - Easy Guides - Wiki - STHDA
PCH in R Best Tips - Datanovia
ggplot2 legend : Easy steps to change the position and the appearance of a graph legend in R software - Easy Guides - Wiki - STHDA
Styling Base R Graphics - Jumping Rivers
Week 8: R graphics-how to make your data look pretty... - R for fish and wildlife grads
R Tutorials | Adding Legends to a Plot in R
Scatterplot3d: 3D graphics - R software and data visualization - Easy Guides - Wiki - STHDA
Add a legend to a base R chart – the R Graph Gallery
Correlation between RMDQ scores and days of work loss. Legend: Scatter... | Download Scientific Diagram
The Complete ggplot2 Tutorial - Part2 | How To Customize ggplot2 (Full R code)
Correlation between RMDQ scores and pain intensity. Legend: Scatter... | Download Scientific Diagram
R legend for color density scatterplot produced using smoothScatter - Stack Overflow
Plot a legend outside of the plotting area in base graphics? - Stack Overflow
R Scatter Plot - Base Graph - Learn By Example
R Base Graphics: An Idiot's Guide
R Tutorials | Adding Legends to a Plot in R
How to Remove Legend from a GGPlot : The Best Reference - Datanovia
STATS4STEM
2-D Scatter Plot with Gradient Color Legend on Top - Stack Overflow
