Question

>>> import numpy as np >>> arr = np.array([1, 2, 3, 4], dtype='S') >>> print(arr) [b'1' b'2' b'3' b'4'] >>> print(arr.dtype) S1

          >>> import numpy as np
>>> arr = np.array([1, 2, 3, 4], dtype='S')
>>> print(arr)
[b'1' b'2' b'3' b'4']
>>> print(arr.dtype)
S1

Added by Margaret S.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert Lien Le

05/27/2023

Step 1

This allows us to use the functionalities provided by the numpy library in our code. Show more…

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Thanks for your feedback!

I import numpy in python and define the data type of string with ‘S’.I can understand why ‘ ’ is in the result of print(arr) because I defined it as a string. However, I don't know the reason why the results have b in front of every element. Also, I don't know the reason why | is in front of S and the meaning of 1 after S. import numpy as np >>> arr = np.array([1 2 3, 4], dtype='s' >>>print(arr) [b'1' b'2' b'3' b'4'] >>> print(arr.dtype s1