再使用sm.add_constant添加线性模型中的截距,用sm.OLS进行普通最小二乘回归。 例6 基于数组接入最小二乘回归 y = np.log(model_data.购买人数 + 1).values #将购买人数对数化然后转化为ndarray model_dummies_1 = pd.get_dummies(model_data.商家等级) #将商家等级转化为虚变量 model_dummies_1.columns =...
File "C:/nf4.py", line 10, in download_report driver.get(q_type) File "C:\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 333, in get self.execute(Command.GET, {'url': url}) File "C:\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, ...
Pandas - 在get_dummies()函数中,参数dummy_na有什么好处/用途? pythonpandas 3 以下是Pandas文档:>>> s1 = ['a', 'b', np.nan] >>> pd.get_dummies(s1) a b 0 1 0 1 0 1 2 0 0 >>> pd.get_dummies(s1, dummy_na=True) a b NaN 0 1 0 0 1 0 1 0 2 0 0 1 ...