Exponential Distribution
The following functions are associated with the exponential equation:
• dexp(x, r)—Returns the probability density for value x.
• pexp(x, r)—Returns the cumulative probability distribution for value x.
• qexp(p, r)—Returns the inverse cumulative probability distribution for probability p.
• rexp(m, r)—Returns a vector of m random numbers having the exponential distribution.
Arguments
• x is a scalar or vector of real values, x ≥ 0. To allow integration and other operations over this argument, values outside of the stated range are allowed, but they produce a 0 result.
• r is a real rate, r > 0.
• p is a real probability, 0 ≤ p ≤ 1.
• m is an integer, m > 0.