# ==============================================================================

# 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 LBFGS (limited memory Broyden-Fletcher-Goldfarb-Shanno)

# example for shared memory systems

# using Mean Squared Error objective function

from pathlib import Path

import numpy as np

from readcsv import pd_read_csv

import daal4py as d4p

def main(readcsv=pd_read_csv):

return res

if __name__ == "__main__":

res = main()

print(

"\nExpected coefficients:\n",

np.array(

[[11], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10]], dtype=np.double

),

)

print("\nResulting coefficients:\n", res.minimum)

print("\nNumber of iterations performed:\n", res.nIterations[0][0])

print("All looks good!")