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How to Create a Heatmap in R Programming
Heatmaps are useful data visualizations in data science and business. Here are three ways to create heatmaps using R.
Visualizations are helpful for identifying the degree of difference among a dataset. One of the most trusted visualizations is a heatmap.
A heatmap is essentially a table containing colors for each element. The colors represent a measuring scale applied to the data. Heatmaps are useful data visualizations when you need to provide your stakeholders a simple difference between a range of numbers. This is valuable for exploratory data analysis, reflecting potential correlations. It can help you locate high and low values among the table variables or rows. Correlation plots provide this visualization principle, with the data relationships displayed through a correlation scale.
There are a few ways to have a heatmap on data in R programming. A heatmap involves 2 variables represented as columns of data within an R object, like a data frame or matrix. So you want to pick the two variables you want to compare in your heatmap.
1. Heatmaps with ggplot2
The ggplot library is a popular data visualization choice in R programming, so naturally interest in creating a heatmap…
