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Density Plot
A density plot is a graphical representation of the distribution of data using a smoothed line plot. A simple density plot can be created in R using a combination of the plot and density functions. In the example below, data from the sample "trees" dataset is used to generate a density plot of tree height.
plot( density( NumericVector) ) Example:
> plot(density(trees$Height)) The resulting plot is very simple. However, users can define arguments to fully customize the appearance of the plot. Each argument is entered within the plot function and separated by a comma. When using the plot / density functions it's often easiest to start with a standard template that lists the most common arguments with a NULL or DEFAULT value (example below). The user can then define whatever arguments they choose to customize the plot.
plot( density (NumericVector), IMPORTANT NOTES:
The format of the above string includes extra returns after each argument. R does not recognize extra returns in a string, the extra returns are included to make visual identification of each argument quicker and easier. Common Density Plot Arguments
Definitions and examples for a few of the more common arguments are provided in the table below. View the subpages under Data Visualization > Density Plot to learn more about the use of these arguments.
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