scipy.special.entr#
- scipy.special.entr(x, out=None) = <ufunc 'entr'>#
Elementwise function for computing entropy.
\[\begin{split}\text{entr}(x) = \begin{cases} - x \log(x) & x > 0 \\ 0 & x = 0 \\ -\infty & \text{otherwise} \end{cases}\end{split}\]- Parameters
- xndarray
Input array.
- outndarray, optional
Optional output array for the function values
- Returns
- resscalar or ndarray
The value of the elementwise entropy function at the given points x.
Notes
This function is concave.
New in version 0.15.0.