Inquiry: Running test in Mean-Variance-Standard Deviation Calculator

Python
1

When I run the code python3 main.py to test my coding, it has the error as below

image
image1746×366 42.8 KB

Here’s the link of my code

2

Can you paste your code here?

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3

This is my code, but when running test it appeared the error below. Normally when I used the reshape() syntax, it worked, so I’m a bit confused here :

import numpy as np

def calculate(list):
# change list into an array
    arr = np.array(list)

# Reshape into 3x3
    matrix = arr.reshape(3, 3)

# Results
    calculations = {
        'mean': {
            'rows': np.mean(matrix, axis=1),
            'columns': np.mean(matrix, axis=0),
            'flattened': np.mean(arr)
        },
        'variance': {
            'rows': np.var(matrix, axis=1),
            'columns': np.var(matrix, axis=0),
            'flattened': np.var(arr)
        },
        'standard deviation': {
            'rows': np.std(matrix, axis=1),
            'columns': np.std(matrix, axis=0),
            'flattened': np.std(arr)
        },
        'max': {
            'rows': np.max(matrix, axis=1),
            'columns': np.max(matrix, axis=0),
            'flattened': np.max(arr)
        },
        'min': {
            'rows': np.min(matrix, axis=1),
            'columns': np.min(matrix, axis=0),
            'flattened': np.min(arr)
        },
        'sum': {
            'rows': np.sum(matrix, axis=1),
            'columns': np.sum(matrix, axis=0),
            'flattened': np.sum(arr)
        }
    }
    return calculations
calculate(list)

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4

I’ve edited your post to improve the readability of the code. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

Pre-formatted-text
Pre-formatted-text1356×380 401 KB

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').

5

Can you please share a link to the exercise?

Are you getting an error because you are calling the function with an undefined variable?

calculate(list)

Call your function as instructed:

For example, calculate([0,1,2,3,4,5,6,7,8]) should return: