Category Archives: Distributions

Basic Syntax

Data distributions in R provide many functions to generate and test random samples.  For any distribution, it is possible to use the density, cumulative probability, quartiles, or a random number generator.  The distribution name must be prefaced with the letters d, p, q or r as follows:

• Density: d<distrib.name>()
• Cumulative Probability: p<distrib.name>()
• Quartile: q<distrib.name>()
• Random Number: r<distrib.name>()