Convert Python List to numpy Arrays

Convert Python List to numpy Arrays

Converting a Python list to a numpy array is straightforward using the numpy library. Here's how you can do it:

  • First, make sure you have numpy installed:
pip install numpy
  • Then, you can use the numpy.array() function to convert a Python list to a numpy array:
import numpy as np # A Python list my_list = [1, 2, 3, 4, 5] # Convert list to numpy array np_array = np.array(my_list) print(np_array) print(type(np_array)) # Output: <class 'numpy.ndarray'>

The same approach can be used for multi-dimensional lists (lists of lists):

my_2d_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]] np_2d_array = np.array(my_2d_list) print(np_2d_array)

Using numpy arrays provides many benefits over standard Python lists for numerical computing, including efficient element-wise operations, a wide variety of mathematical functions, and useful indexing capabilities.

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