我目前正试图在Python中实现一个MLR,我不知道如何去应用我发现的未来值的系数。使用OLS回归(Python,StatsModels,Pandas)预测未来值
import pandas as pd
import statsmodels.formula.api as sm
import statsmodels.api as sm2
TV = [230.1, 44.5, 17.2, 151.5, 180.8]
Radio = [37.8,39.3,45.9,41.3,10.8]
Newspaper = [69.2,45.1,69.3,58.5,58.4]
Sales = [22.1, 10.4, 9.3, 18.5,12.9]
df = pd.DataFrame({'TV': TV,
'Radio': Radio,
'Newspaper': Newspaper,
'Sales': Sales})
Y = df.Sales
X = df[['TV','Radio','Newspaper']]
X = sm2.add_constant(X)
model = sm.OLS(Y, X).fit()
>>> model.params
const -0.141990
TV 0.070544
Radio 0.239617
Newspaper -0.040178
dtype: float64
所以我们可以说我想预测出的“销售”以下数据框:
EDIT
TV Radio Newspaper Sales
230.1 37,8 69.2 22.4
44.5 39.3 45.1 10.1
... ... ... ...
25 15 15
30 20 22
35 22 36
我一直在努力,我发现这里的方法,但我似乎无法得到它的工作:Forecasting using Pandas OLS
谢谢!