examples/daal4py/distributions_normal.py

# ==============================================================================
# Copyright 2014 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================

# daal4py normal distribution example for shared memory systems


import numpy as np

import daal4py as d4p


def main(readcsv=None):
    # Create algorithm
    algorithm = d4p.distributions_normal(engine=d4p.engines_mt19937(seed=777))

    # Create array and fill with normal distribution
    data = np.zeros((1, 10))
    res = algorithm.compute(data)

    assert np.allclose(data, res.randomNumbers)
    assert np.allclose(
        data,
        [
            [
                -0.74104167,
                -0.13616829,
                -0.13679562,
                2.40385531,
                -0.33556821,
                0.19041699,
                -0.61331181,
                0.95958821,
                -0.42301092,
                0.09460208,
            ]
        ],
    )

    return data


if __name__ == "__main__":
    res = main()
    print("\nNormal distribution output:", res)
    print("All looks good!")