R Language Distribution Functions

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R has many built-in functions to work with probability distributions, with official docs starting at ?Distributions.


There are generally four prefixes:

  • d-The density function for the given distribution
  • p-The cumulative distribution function
  • q-Get the quantile associated with the given probability
  • r-Get a random sample

For the distributions built into R's base installation, see ?Distributions.

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