| |
| |
| ``mx.nd.random.pdf.normal`` |
| ====================================================== |
| |
| Description |
| ---------------------- |
| |
| Computes the value of the PDF of *sample* of |
| normal distributions with parameters *mu* (mean) and *sigma* (standard deviation). |
| |
| *mu* and *sigma* must have the same shape, which must match the leftmost subshape |
| of *sample*. That is, *sample* can have the same shape as *mu* and *sigma*, in which |
| case the output contains one density per distribution, or *sample* can be a tensor |
| of tensors with that shape, in which case the output is a tensor of densities such that |
| the densities at index *i* in the output are given by the samples at index *i* in *sample* |
| parameterized by the values of *mu* and *sigma* at index *i*. |
| |
| |
| **Example**:: |
| |
| |
| sample = [[-2, -1, 0, 1, 2]] |
| random_pdf_normal(sample=sample, mu=[0], sigma=[1]) = |
| [[0.05399097, 0.24197073, 0.3989423, 0.24197073, 0.05399097]] |
| |
| random_pdf_normal(sample=sample*2, mu=[0,0], sigma=[1,2]) = |
| [[0.05399097, 0.24197073, 0.3989423, 0.24197073, 0.05399097], |
| [0.12098537, 0.17603266, 0.19947115, 0.17603266, 0.12098537]] |
| |
| |
| |
| |
| Arguments |
| ------------------ |
| |
| +----------------------------------------+------------------------------------------------------------+ |
| | Argument | Description | |
| +========================================+============================================================+ |
| | ``sample`` | NDArray-or-Symbol. | |
| | | | |
| | | Samples from the distributions. | |
| +----------------------------------------+------------------------------------------------------------+ |
| | ``mu`` | NDArray-or-Symbol. | |
| | | | |
| | | Means of the distributions. | |
| +----------------------------------------+------------------------------------------------------------+ |
| | ``is.log`` | boolean, optional, default=0. | |
| | | | |
| | | If set, compute the density of the log-probability instead | |
| | | of the | |
| | | probability. | |
| +----------------------------------------+------------------------------------------------------------+ |
| | ``sigma`` | NDArray-or-Symbol. | |
| | | | |
| | | Standard deviations of the distributions. | |
| +----------------------------------------+------------------------------------------------------------+ |
| |
| Value |
| ---------- |
| |
| ``out`` The result mx.ndarray |
| |
| |
| Link to Source Code: http://github.com/apache/incubator-mxnet/blob/1.6.0/src/operator/random/pdf_op.cc#L300 |
| |
