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Source code for geometricus.utility
91 | import typing
92 | from pathlib import Path
93 |
94 | import numba as nb
95 | import numpy as np
96 |
97 |
98 | [docs]@nb.njit
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def nan_normalize(numbers):
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minv, maxv = np.nanmin(numbers), np.nanmax(numbers)
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return (numbers - minv) / (maxv - minv)
102 |
103 |
104 | [docs]@nb.njit
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def normalize(numbers):
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minv, maxv = np.min(numbers), np.max(numbers)
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return (numbers - minv) / (maxv - minv)
108 |
109 |
110 | [docs]@nb.njit
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def nb_mean_axis_0(array: np.ndarray) -> np.ndarray:
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"""
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Same as np.mean(array, axis=0) but njitted
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"""
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mean_array = np.zeros(array.shape[1])
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for i in range(array.shape[1]):
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mean_array[i] = np.mean(array[:, i])
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return mean_array
119 |
120 |
121 | [docs]def get_file_parts(input_filename: typing.Union[str, Path]) -> tuple:
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"""
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Gets directory path, name, and extension from a filename
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Parameters
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----------
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input_filename
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Returns
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-------
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(path, name, extension)
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"""
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input_filename = Path(input_filename)
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path = str(input_filename.parent)
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extension = input_filename.suffix
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name = input_filename.stem
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return path, name, extension
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138 |
139 | [docs]def group_indices(input_list: list) -> list:
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"""
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[1, 1, 1, 2, 2, 3, 3, 3, 4] -> [[0, 1, 2], [3, 4], [5, 6, 7], [8]]
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Parameters
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----------
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input_list
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146 |
Returns
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-------
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list of lists
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"""
150 |
output_list = []
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current_list = []
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current_index = None
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for i in range(len(input_list)):
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if current_index is None:
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current_index = input_list[i]
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if input_list[i] == current_index:
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current_list.append(i)
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else:
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output_list.append(current_list)
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current_list = [i]
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current_index = input_list[i]
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output_list.append(current_list)
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return output_list
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