如该题,在计算出y关于t的表达式之后,用什么方法能够代入相应y值,计算出对应的t
#提交测试集
df_test["OverallQual"]=df_test['OverallQual'].astype('object')#改变overallqual的类型
df_test = df_test[['GrLivArea','TotalBsmtSF','YearBuilt','OverallQual',]]#过滤无用的的数据集只剩有用的几个
df_test['BuiltAge'] = 2019-df_test['YearBuilt']#处理yearbuilt,讲yearbuilt改成builtage
df_test = pd.concat([df_test,pd.get_dummies(df_test['OverallQual'],prefix='F_OverallQual')],axis = 1)#讲overallqual处理成哑变量