torch.Tensor.exponential_

Tensor.exponential_(lambd=1, *, generator=None) → Tensor

Fills self tensor with elements drawn from the PDF (probability density function):

$$f(x) = \lambda e^{-\lambda x}, x > 0$$

Note

In probability theory, exponential distribution is supported on interval [0, $\inf$) (i.e., $x >= 0$) implying that zero can be sampled from the exponential distribution. However, torch.Tensor.exponential_() does not sample zero, which means that its actual support is the interval (0, $\inf$).

Note that torch.distributions.exponential.Exponential() is supported on the interval [0, $\inf$) and can sample zero.