torch (version 0.8.1)

torch_bernoulli: Bernoulli

Description

Bernoulli

Usage

torch_bernoulli(self, p, generator = NULL)

Arguments

self

(Tensor) the input tensor of probability values for the Bernoulli distribution

p

(Number) a probability value. If p is passed than it's used instead of the values in self tensor.

generator

(torch.Generator, optional) a pseudorandom number generator for sampling

bernoulli(input, *, generator=NULL, out=NULL) -> Tensor

Draws binary random numbers (0 or 1) from a Bernoulli distribution.

The input tensor should be a tensor containing probabilities to be used for drawing the binary random number. Hence, all values in input have to be in the range: \(0 \leq \mbox{input}_i \leq 1\).

The \(\mbox{i}^{th}\) element of the output tensor will draw a value \(1\) according to the \(\mbox{i}^{th}\) probability value given in input.

$$ \mbox{out}_{i} \sim \mathrm{Bernoulli}(p = \mbox{input}_{i}) $$ The returned out tensor only has values 0 or 1 and is of the same shape as input.

out can have integral dtype, but input must have floating point dtype.

Examples

if (torch_is_installed()) {

a = torch_empty(c(3, 3))$uniform_(0, 1)  # generate a uniform random matrix with range c(0, 1)
a
torch_bernoulli(a)
a = torch_ones(c(3, 3)) # probability of drawing "1" is 1
torch_bernoulli(a)
a = torch_zeros(c(3, 3)) # probability of drawing "1" is 0
torch_bernoulli(a)
}