import pandas as pd
import numpy as np
from statsmodels.formula.api import ols
from statsmodels.stats.anova import anova_lm
import statsmodels.api as sm
house=pd.read_excel('house.xlsx')
house.head()
formula='space~C(education)+C(unit)+C(income)+C(type)'
house_anova=sm.stats.anova_lm(ols(formula,data=house).fit(),typ=3)
house_anova
运行结果为 r_matrix performs f_test for using dimensions that are asymptotically non-normal
应该不是数据的问题
求解释