Want to display exact values or add custom labels to your heatmap cells? This comprehensive guide shows you exactly how to add ggplot2 heatmap text annotation using geom_text(), geom_label(), and advanced formatting techniques for professional data visualizations. Heatmaps are excellent for visualizing data patterns through color intensity, but sometimes you need to show precise values… Continue reading How to add text annotation to heatmap with ggplot2
Category: ggplot2
How to directly add labels on a plot with ggrepel
In this tutorial, we will learn how to add legends to a plot made with ggplot2 directly on the plot, so that it is much easier to understand the plot. When you make a plot with ggplot, adding legends to explain the plot is of great help to understand a plot. By default, ggplot2 adds… Continue reading How to directly add labels on a plot with ggrepel
3 Different ways to make bar plots with ggplot2
Creating effective bar plots in ggplot2 requires knowing which function to use for your data structure. This comprehensive guide demonstrates three essential approaches—geom_bar() for raw data, geom_col() for summarized values, and stat_count() for explicit control—with practical R code examples you can immediately apply to your own datasets.” Bar plot with geom_bar() Bar plot with stat_count()… Continue reading 3 Different ways to make bar plots with ggplot2
How to specify the order of panes in facet_wrap
In this tutorial, we will learn how to change the order of panes in a plot made with facet_wrap() or facet_grid(). We will use forcats package’s function fct_relevel() to specify the order we want while plotting. Let us make a scatterplot with facets using facet_wrap() function in ggplot2. Change order of plots in facet_wrap() with… Continue reading How to specify the order of panes in facet_wrap
How to Format Date in title text in ggplot2
In this tutorial, we will learn how to format date variables in the title text of a plot made with ggplot2. Sometimes one might want to write date in the title text. It is better to use the date as variable and format the way want, either full month or short month or full/partial days.… Continue reading How to Format Date in title text in ggplot2