应用逻辑回归分类器对已有的良性/恶性肿瘤预测，用软件pycharm

import pandas as pd
column_names = ['number','ClThickness','Unif_cell_size','Unif_cell_shape','Marg_Adhesion',
                'Sing_epith_cell_size','Bare_nuclei','Bland_chromation','Norm_nuclei','Mitoses','Class']

df1 = pd.read_excel("breast-cancer-wisconsin.xlsx",sheet_name="data")
df1.columns =column_names
print(df1.head())

没有实际的数据集怎么搞