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:
# 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")
# 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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