What is the meaning of Standardization in KNN

@vineet72 wrote:

I have lot of confusion in the standardization process in the K-NN algorithm.
Here is the code:-

from sklearn.preprocessing import StandardScaler
scaler= StandardScaler()
scaler.fit(df.drop(‘TARGET CLASS’,axis=1))
scaled_features=scaler.transform(df.drop(‘TARGET CLASS’,axis=1))

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