Custom ggplot2 scatterplot

This post follows the previous basic scatterplot with ggplot2. It shows the kind of customization you can apply to circles thanks to the geom_point() options:

color: the stroke color, the circle outline
stroke: the stroke width
fill: color of the circle inner part
shape: shape of the marker. See list in the ggplot2 section
alpha: circle transparency, [0->1], 0 is fully transparent
color: the stroke color, the circle outline
size: circle size

Note: these options will be uniform among markers if you put it in the geom_point() call. You can also map them to a variable if put inside the aes() part of the code.

# library library(ggplot2) # Iris dataset is natively provided by R #head(iris) # use options! ggplot(iris, aes(x=Sepal.Length, y=Sepal.Width)) + geom_point( color="orange", fill="#69b3a2", shape=21, alpha=0.5, size=6, stroke = 2 )

Note that applying the theme_ipsum of the hrbrthemes package is always a good option.

# library library(ggplot2) library(hrbrthemes) # Iris dataset is natively provided by R #head(iris) # use options! ggplot(iris, aes(x=Sepal.Length, y=Sepal.Width)) + geom_point( color="black", fill="#69b3a2", shape=22, alpha=0.5, size=6, stroke = 1 ) + theme_ipsum()

Custom ggplot2 scatterplot

Using `theme_ipsum`

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Using theme_ipsum

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Using `theme_ipsum`