将模型与数据进行拟合,并显示R平方值 我是使用Python进行统计的初学者。我尝试在不转换为新DataFrame的情况下获取日志值,但出现了一个错误:"TypeError:'OLS‘object is not subscriptable“ import statsmodels.apiimport numpy as np
cars_data = cars.data
假设我有一个表达式
exp="\"OLS\".\"ORDER_ITEMS\".\"QUANTITY\" <50 and \"OLS\".\"PRODUCTS\".\"PRODUCT_NAME\" = 'Kingston' or \"OLS\".\"ORDER_ITEMS\".\"QUANTITY\" <20&quo
每组的回归结果是一个向量,我想将所有结果堆叠成一个表,每个系数估计值作为一列。2 2 3 3 3 3 3 as id, rand(1.0, 15) as y, 1..15 as x1, 3 2 9 5 0 6 7 8 9 10 3 5 0 8 0 as x2)
select ols(y, (x1, x2)) from t group by id 我收到以下错误消息: select ols(y, x1, x2) as ols_y from t group by id => Thecolumn