import pandas as pd from utils import normalize_ndarray df = pd.read_pickle('data.p') print('Columns', df.columns); print(df[df.columns[0:8]]) columns = ['longitude', 'latitude', 'biome_num', 'elevation', 'distance_to_water', 'temp_winter_1900', 'precip_winter_1900', 'temp_spring_1900', 'precip_spring_1900'] normalized = normalize_ndarray(df[columns].to_numpy()) print(pd.DataFrame(columns=columns, data=normalized))