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--- r:multiple_regression [2019/11/08 09:26] – [Partial, Semi-partial Correlation and R squared value] hkimscil
+++ r:multiple_regression [2019/11/08 09:37] – [Partial, Semi-partial Correlation and R squared value] hkimscil
@@ Line 404: / Line 404: @@
 이 둘의 합은 ''1.726415562'' 로 1을 넘는다. 즉, 각 독립변인의 영향력은 중복 (독립변인 간의 상관관계) 되어 있다는 뜻.
-{{20191108_092352.jpg}}
+{{20191108_092352.jpg?400}}
@@ Line 512: / Line 512: @@
 </code>
+Alternatively,
+<code>
+> install.packages("lmtest")
+> library(lmtest)
+> lrtest(lm.stock.int, lm.stock)
+Likelihood ratio test
+Model 1: Stock_Index_Price ~ Interest_Rate
+Model 2: Stock_Index_Price ~ Interest_Rate + Unemployment_Rate
+  #Df  LogLik Df  Chisq Pr(>Chisq)
+   3 -136.94
+   4 -134.61  1 4.6576    0.03092 *
+---
+Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
+> </code>