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Diffstat (limited to 'ml_exp/frob_norm.py')
| -rw-r--r-- | ml_exp/frob_norm.py | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/ml_exp/frob_norm.py b/ml_exp/frob_norm.py deleted file mode 100644 index 4c3a2945d..000000000 --- a/ml_exp/frob_norm.py +++ /dev/null @@ -1,51 +0,0 @@ -"""MIT License - -Copyright (c) 2019 David Luevano Alvarado - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. -""" -import math - - -def frob_norm(array): - """ - Calculates the frobenius norm of a given array or matrix. - array: array of data. - """ - - arr_sh_len = len(array.shape) - arr_range = range(len(array)) - fn = 0.0 - - # If it is a 'vector'. - if arr_sh_len == 1: - for i in arr_range: - fn += array[i]*array[i] - - return math.sqrt(fn) - - # If it is a matrix. - elif arr_sh_len == 2: - for i in arr_range: - for j in arr_range: - fn += array[i, j]*array[i, j] - - return math.sqrt(fn) - else: - print('Error. Array size greater than 2 ({}).'.format(arr_sh_len)) |