This article represents code samples which could be used to create multiple density curve or plots using ggplot2 package in R programming language. Please feel free to comment/suggest if I missed to mention one or more important points. Also, sorry for the typos.
Multiple Density Curves/Graphs with GGPlot
The code samples given below works for “diamonds” dataset which is loaded as part of ggplot2 package. Following are two different types of plots shown below:
- Density plots with multiple fills
- Density plot with single fill
Density Plots with Multiple Fills:Following code represents density plots with multiple fills. Pay attention to the “fill” parameter passed to “aes” method.
# Create density plots for single variable filtered by fill condition # In example below, fill is assigned to cut ggplot(diamonds, aes(x=carat, fill=cut)) + geom_density() + labs(title="Density Plot", x="Carat")
Density Plot with Single Fill: Following plot demonstrates the density plot with single fill.
# Create density plot for single variable ggplot(diamonds, aes(x=carat)) + geom_density(col="red", fill="yellow", alpha=0.4) + labs(title="Density Plot", x="Carat")
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