Python numpy.empty()で空のNumpy配列(ndarray)を作成するサンプル
環境
Windows 11 Pro 64bit
Python 3.11
構文
numpy.zeros()の引数「shape」にnumpy配列の形状をタプルで指定します。
empty_array = numpy.zeros(shape=(n,l))
引数「shape」に指定した形状のnumpy配列を生成します。
使用例
import numpy as np
numbers = np.empty(shape=(3,3))
print(type(numbers))
print(numbers)
import numpy as np
numbers = np.empty(shape=(3,3))
print(type(numbers))
print(numbers)
import numpy as np numbers = np.empty(shape=(3,3)) print(type(numbers)) print(numbers)
実行結果
<class 'numpy.ndarray'>
[[0. 0. 0.]
[0. 0. 0.]
[0. 0. 0.]]
<class 'numpy.ndarray'>
[[0. 0. 0.]
[0. 0. 0.]
[0. 0. 0.]]
<class 'numpy.ndarray'> [[0. 0. 0.] [0. 0. 0.] [0. 0. 0.]]