Add Legend to a plot - legend() Function in R - DataScience Made Simple
Add legend at the top of a plot - Stack Overflow
R: legend boxes with more than one colour - Stack Overflow
The Complete ggplot2 Tutorial - Part2 | How To Customize ggplot2 (Full R code)
Add legends to plots in R software : the easiest way! - Easy Guides - Wiki - STHDA
Taking control of the legend in raster (in R) – biologyforfun
How to change size of points of legend when 2 legends are present - Stack Overflow
Add legend with color and range in R - Stack Overflow
R: legend with points and lines being different colors (for the same legend item) - Stack Overflow
PCH in R Best Tips - Datanovia
How to display a legend outside a R plot | Ben Fradet
How To Easily Customize GGPlot Legend for Great Graphics - Datanovia
Describe Parts of a Chart in Graphical Form in R Programming - legend() Function - GeeksforGeeks
R 에서 범례 넣는 법 How to Plot Legend in R
Figure 14-7: External Legends – SGR
ggplot2 legend : Easy steps to change the position and the appearance of a graph legend in R software - Easy Guides - Wiki - STHDA
Line Types in R: The Ultimate Guide for R Base Plot and GGPLOT - Datanovia
R: text of legend falls outside of plot when exporting to PDF - Stack Overflow
R Tutorials | Adding Legends to a Plot in R
Data Visualization with R - Legends - Rsquared Academy Blog - Explore Discover Learn
Legend in R pch not filled - Stack Overflow
Quick-R: Axes and Text
