Applies 2D fractional max pooling over an input signal composed of several input planes.

## Usage

```
nnf_fractional_max_pool2d(
input,
kernel_size,
output_size = NULL,
output_ratio = NULL,
return_indices = FALSE,
random_samples = NULL
)
```

## Arguments

- input
the input tensor

- kernel_size
the size of the window to take a max over. Can be a single number \(k\) (for a square kernel of \(k * k\)) or a tuple

`(kH, kW)`

- output_size
the target output size of the image of the form \(oH * oW\). Can be a tuple

`(oH, oW)`

or a single number \(oH\) for a square image \(oH * oH\)- output_ratio
If one wants to have an output size as a ratio of the input size, this option can be given. This has to be a number or tuple in the range (0, 1)

- return_indices
if

`True`

, will return the indices along with the outputs.- random_samples
optional random samples.