import numpy as np a = np.array([1, 1]) b = np.ndarray([1, 1]) print(*(a.shape + b.shape))
Задачи по питону и машинному обучению: алгоритмы, функции, классы, регулярные выражения, итераторы, генераторы, ООП, исключения, numpy, pandas, matplotlib, scikit-learn, TensorFlow и др. #Python #ml
import numpy as np a = np.array([1, 1]) b = np.ndarray([1, 1]) print(*(a.shape + b.shape))
import numpy as np a = np.array([0.1, 0.25]) b = np.array([0.1, 0.26]) c = np.allclose(a, b, atol=1e-1) print(c)
import numpy as np a = np.array([np.nan]) b = np.array([np.nan]) x = np.isclose(a, b) y = np.isclose(a, b, equal_nan=True) print(*x, *y)
import numpy as np a = np.array([0.1, 0.25]) b = np.array([0.3, 0.26]) c = np.isclose(a, b, atol=1e-1) print(*c)
import numpy as np a = np.array([1, 1j]) x = np.isreal(a) y = np.iscomplex(a) z = x.sum() + y.sum() print(z)
import numpy as np a = np.array([True, False]) print(np.all(a), np.any(a))
import numpy as np r = np.array([3, 4, 5])
import numpy as np a = np.array([[0], [1]]) b = np.array([[1], [-1]])
import numpy as np a = np.array([[0], [1]]) b = np.array([[1], [-1]])
import numpy as np
a = [('x', 6.0, 1), ('y', 5.0, 2), ('z', 5.0, 3)]
dtype = [('val', 'S1'), ('float', 'f8'), ('int', 'i4')]
b = np.array(a, dtype=dtype)
b.sort(order=['float', 'int'])
print(b[1][0].decode())import numpy as np
dt = np.dtype([('x', 'f8')])
a = np.zeros(4, dtype=dt)
a['x'] = np.array((0., 1., 2., 3.))
print(a['x'][2] + a['x'][3])import numpy as np a = np.ones(2, dtype='int8,float32,complex') a[0][0] = 2 a[1][1] = 3 a[0][2] = 4j print(sum(a[0]).imag + sum(a[1]).real)