In this tutorial, we will learn how to reverse the order of legend keys in ggplot2. In ggplot2, when we color by a variable using color or fill argument in side aes(), we get a legend with keys showing which keys match which colors. Here we will show how to reverse the order of legend… Continue reading How to reverse legend key order in ggplot2
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How to Increase Legend Key Size in ggplot2
In this tutorial, we will learn how to increase the color legend’s point (or legend key) size in ggplot2. Often when you make a plot with multiple groups and large number of data points, the legend key for the color variable are small and can be not legible in the plot. Here we will see… Continue reading How to Increase Legend Key Size in ggplot2
Lollipop plot with ggplot extension ggalt
In this tutorial, we will learn how to make lollipop plot using ggalt, one of the ggplot2 extension packages. A lollipop plot is a great alternative for bar plot as the amount ink used to make the lollipop plot is much smaller. ggalt, R package developed by @hrbrmstr, has a geom for making lollipop called… Continue reading Lollipop plot with ggplot extension ggalt
How to write a function make histograms with ggplot
In this tutorial, we will learn how to write a function to make a histograms using ggplot2 in R. Writing a function to create plots is useful, when you make a lot of plots, in this example, a lot of histograms. Thanks to the upcoming 2nd edition of R for Data Science by Hadley Wickham,… Continue reading How to write a function make histograms with ggplot
How to Add Colors to Axis Tick Label in ggplot2
In this tutorial, we will learn how to add colors to axis tick labels in ggplot2. To add colors to axis labels we will use the R package “ggtext: Improved text rendering support for ggplot2” developed by Claus Wilke. Let us get started by loading the packages needed. We will use Palmer Penguin data set… Continue reading How to Add Colors to Axis Tick Label in ggplot2