[Solved] Identify the error in this code snippet:import numpy as np from numpy import polyfit x = [0, 1, 2] y = [1, 4, 9] coeffs = polyfit(x, y, '2') | SciPy

SciPy - Curve Fitting and Regression

Identify the error in this code snippet:

import numpy as np
from numpy import polyfit
x = [0, 1, 2]
y = [1, 4, 9]
coeffs = polyfit(x, y, '2')

Apolyfit is not imported correctly

Bx and y must be numpy arrays, not lists

CMissing import for polyval

DDegree parameter should be an integer, not a string

Step-by-Step Solution

Solution:

Step 1: Check parameter types
The degree parameter must be an integer, but '2' is a string.
Step 2: Validate other parts
Lists for x and y are acceptable; polyfit import is correct; polyval import is not required here.
Final Answer:
Degree parameter should be an integer, not a string -> Option D
Quick Check:
Degree must be int, not str [OK]

Quick Trick: Degree must be integer, not string [OK]

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