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convert categorical column to int in pandas Code Example
column dataframe to int 
df[[column_name]].astype(int)
convert a pandas column to int 
# convert Series
my_series = pd.to_numeric(my_series)

# convert column "a" of a DataFrame
df["a"] = pd.to_numeric(df["a"])
Source: stackoverflow.com
convert categorical column to int in pandas 
from sklearn import preprocessing

lab_encoder = preprocessing.LabelEncoder()
df['column'] = lab_encoder.fit_transform(df['column'])



Python

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