NumPy: Create a 3x3x3 array with random values
NumPy: Random Exercise-3 with Solution
Write a NumPy program to create a 3x3x3 array with random values.
Sample Solution:
Python Code:
import numpy as np
x = np.random.random((3,3,3))
print(x)
Sample Output:
[[[ 0.08372197 0.09089865 0.54581268] [ 0.62831932 0.06252404 0.1108799 ] [ 0.25040264 0.80817908 0.37027715]] [[ 0.44916756 0.66390614 0.83100662] [ 0.87831954 0.17075539 0.7506945 ] [ 0.56165801 0.72280907 0.22771692]] [[ 0.04956428 0.7143399 0.37042941] [ 0.78875282 0.27425369 0.88486919] [ 0.13395418 0.86087257 0.36234729]]]
Pictorial Presentation:
Python-Numpy Code Editor:
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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