remove imports

Author: seenstevo

ds11mltoolkit/data_analysis.py

@@ -1,4 +1,8 @@
 import pandas as pd
+import pickle
+import zipfile
+import scipy.stats as stats
+import pandas as pd
 
 def read_url(url):
 
@@ -32,8 +36,6 @@ def read_url(url):
 
 def read_csv_zip(zip_file, csv_file, sep=';'):
 
-    import pickle
-    import zipfile
     """
     Upload a CSV file from a zip file with custom separation.
 
@@ -55,8 +57,7 @@ def read_csv_zip(zip_file, csv_file, sep=';'):
     return df
 
 def chi_squared_test(df, feature, target):
-    import scipy.stats as stats
-    import pandas as pd
+
     """
     This function performs a chi-squared test of independence between two categorical variables.
 
@@ -76,4 +77,4 @@ def chi_squared_test(df, feature, target):
     chi2, p, dof, expected = stats.chi2_contingency(contingency_table)
 
     # Return the chi-squared value and p-value obtained in the test.
-    return chi2, p
+    return chi2, p