Reason for the error
The length of the index of the pandas DataFrame(i.e length of the column of present DataFrame) which is 10 in this case is not equal to the length of the new list or NumPy array which is 7 in this case.
pd.Index.size!=len(petal_width)
How to Fix: Length of values does not match length of index
In this article we will fix the error: The length of values does not match the length of the index in Python.
Cases of this error occurrence:
Python3
# importing pandas import pandas as pd sepal_length = [5.1, 4.9, 4.7, 4.6, 5.0, 5.4, 4.6, 5.0, 4.4, 4.9] sepal_width = [4.6, 5.0, 5.4, 4.6, 5.0, 4.4, 4.9, 5.1, 5.2, 5.3] petal_length = [3.3, 4.6, 4.7, 5.6, 6.7, 5.0, 4.8] petal_width = [3.6, 5.6, 5.4, 4.6, 4.4, 5.0, 4.9] # DataFrame with 2 columns df = pd.DataFrame({'sepal_length(cm)': sepal_length, 'sepal_width(cm)': sepal_width}) df['petal_length(cm)'] = petal_length df['petal_width(cm)'] = petal_width print(df) |
Output:
ValueError: Length of values (7) does not match length of index (10)