I want to calculate mssing value by mean method from the dataset but it gives me
error unhashable type: 'slice'
CODE:
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
dataset= pd.read_csv('Data.csv')
m=dataset.iloc[:,:-1].values
X= pd.DataFrame(m)
n=dataset.iloc[:,-1].values
Y= pd.DataFrame(n)
from sklearn.preprocessing import Imputer
imputer = Imputer(missing_values = 'NaN', strategy = 'mean', axis = 0)
imputer = imputer.fit(X[:, 1:3])
X[:, 1:3] = imputer.transform(X[:, 1:3])