Algorithms, functions, classes, regular expressions, iterators, generators, OOP, exceptions, NumPy, pandas, scikit-learn
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Questions — @dina_ladnyuk
Post #983
4.2K
Channel Public Channel
PY Python Tasks & ML | Задачи по питону и машинному обучению
@python_tasks
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Post #982
3.77K
Что выведет код?
import numpy as np
a = np.array([True, False])
print(np.all(a), np.any(a))
Post #980
3.57K
Post #979
3.37K
Дан код
import numpy as np
r = np.array([3, 4, 5])
Post #977
3.47K
Post #976
3.37K
Дан код
import numpy as np
a = np.array([[0], [1]])
b = np.array([[1], [-1]])
Post #975
3.7K
Post #974
3.48K
Дан код
import numpy as np
a = np.array([[0], [1]])
b = np.array([[1], [-1]])
Post #973
3.69K
Post #971
3.87K
Post #970
3.63K
Что выведет код?
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())
Post #968
3.68K
Post #967
3.42K
Что выведет код?
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])
Post #966
3.64K
Post #965
3.29K
Что выведет код?
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)
Post #963
3.48K
Post #962
3.18K
Что выведет код?
import numpy as np
a = np.array([1, 2, 3, 4])
b = np.searchsorted(a, 3.5)
print(b)
Post #960
3.35K
Post #959
3.24K
Что выведет код?
import numpy as np
a = np.array([30, 0, -1, 7])
x = np.argsort(a)
print(x[0])
Post #958
3.93K