Exponential distribution.
Its probability density function is
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for x > 0 and 0 elsewhere.
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is the scale parameter,
which is the inverse of the rate parameter
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The rate parameter is an alternative, widely used parameterization
of the exponential distribution [R154].
The exponential distribution is a continuous analogue of the
geometric distribution. It describes many common situations, such as
the size of raindrops measured over many rainstorms [R152], or the time
between page requests to Wikipedia [R153].
| Parameters : | scale : float
The scale parameter,
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rman-x-2011-07-01, ngerman-x-2011-07-01, afrikaans, ancientgreek, ibycus, arabi
c, armenian, basque, bulgarian, catalan, pinyin, coptic, croatian, czech, danis
h, dutch, ukenglish, usenglishmax, esperanto, estonian, ethiopic, farsi, finnis
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kurmanji, lao, latin, latvian, lithuanian, mongolian, mongolianlmc, bokmal, nyn
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size : tuple of ints
Number of samples to draw. The output is shaped
according to size.
|
|---|
References
| [R152] | (1, 2) Peyton Z. Peebles Jr., “Probability, Random Variables and
Random Signal Principles”, 4th ed, 2001, p. 57. |
