R: ggplot add legend manually - Stack Overflow
ggplot: Add second legend to plot with two dataframes - Stack Overflow
Building a nice legend with R and ggplot2 – the R Graph Gallery
Creating legends when aesthetics are constants in ggplot2
Building a nice legend with R and ggplot2 – the R Graph Gallery
How To Change Legend Title in ggplot2? - Python and R Tips
Add legend to ggplot2 line plot - Stack Overflow
How To Easily Customize GGPlot Legend for Great Graphics - Datanovia
Ggplot2: Change legend title while controlling line types and colors - tidyverse - RStudio Community
Creating graphs in R with ggplot2 – Quadtrees
Adding manual legend to ggplot2 - tidyverse - RStudio Community
how to add just the legend · Issue #2368 · tidyverse/ggplot2 · GitHub
Add legend to ggplot2 line plot - Stack Overflow
Change Legend Title in ggplot2 (2 Examples) | Modify ggplot Legends Text
Adding legend to ggplot when lines were added manually - Stack Overflow
/figure/unnamed-chunk-10-2.png "Legends (ggplot2)")
Legends (ggplot2)
Graphics with R: an introduction to ggplot2 | The Madreporite
ggplot2 - add manual legend to multiple layers - Stack Overflow
How to add a custom legend to plot with ggplot? - Stack Overflow
ggplot2 legend : Easy steps to change the position and the appearance of a graph legend in R software - Easy Guides - Wiki - STHDA
Multiple legends for the same aesthetic | R-bloggers
Multiple legends for the same aesthetic | R-bloggers
how to add legend manually with ggplot2 - Stack Overflow
How to create a legend for ggplot - tidyverse - RStudio Community
