Double Weibull distribution

The probability density function for double Weibull distribution is:

.. math::

f(x, c) = \frac{c}{2} |x|^{c-1} \exp(-|x|^c)

for :math:c>0. Here :math:c is a shape parameter.

The following plot shows the pdf.

.. image:: ../../../../tests/imgs/stats/continuous/dweibull/dweibullpdf.png :align: center :width: 480