Statistics.Distributions.Exponential
Exponential distribution.
lambda
is the rate parameter and must be greater than zero.
Summary↑
cdf(x) | The cumulative density function |
cdf(x, lambda) | |
pdf(x) | The probability density function |
pdf(x, lambda) | |
ppf(x) | The percentile-point function |
ppf(x, lambda) | |
rand(lambda) | Draw a random number from the distribution with specified lambda |
Functions
The cumulative density function
Examples
iex> Statistics.Distributions.Exponential.cdf(1, 1)
0.6321205588285577
The probability density function
Examples
iex> Statistics.Distributions.Exponential.pdf(1, 1)
0.36787944117144233
The percentile-point function
Examples
iex> Statistics.Distributions.Exponential.ppf(0.1)
0.10536051565782628
Draw a random number from the distribution with specified lambda
Uses the rejection sampling method
Examples
iex> Statistics.Distributions.Exponential.rand(1)
0.145709384787