Point Shape Options in ggplot - Albert's Blog

I’m familiar enough with ggplot that I can make a quick plot pretty easily in most cases.1 But when it comes to fine-tuning the various plot aesthetics, like adjusting the legend position or rotating axis tick labels, I always have to look them up. Today, I will be writing about one of these pesky things: looking up the point shape options for geom_point. The available documentation for this isn’t great, so I thought it would be worthwhile to write my own reference.

Color, line type, and point shape in ggplot2 diagrams

Point Shape Options in ggplot - Albert's Blog

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r - Create a new custom point shape for ggplot2 - Stack Overflow

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Point Shape Options in ggplot - Albert's Blog

r - How to add any geom_point shapes to ggplot legend? - Stack Overflow

How to change the legend shape using ggplot2 in R? - GeeksforGeeks