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multiple_regression_examples [2019/11/01 13:17] – [Backward elimination] hkimscilmultiple_regression_examples [2019/11/01 13:17] – [Backward elimination] hkimscil
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 <WRAP half column> <WRAP half column>
 +lm.fit.01 <- lm(formula = Sales ~ 
 +                 CompPrice + Income + 
 +                 Advertising + Price + 
 +                 ShelveLoc + Age, 
 +                 data = Carseats)
 +summary(lm.fit.01)
 +> lm.fit.01 <- lm(formula = Sales ~ CompPrice + 
 +         Income + Advertising + Price + 
 +         ShelveLoc + Age, data = Carseats)
 +> summary(lm.fit.01)
  
 +Call:
 +lm(formula = Sales ~ CompPrice + Income + Advertising + Price + 
 +    ShelveLoc + Age, data = Carseats)
 +
 +Residuals:
 +    Min      1Q  Median      3Q     Max 
 +-2.7728 -0.6954  0.0282  0.6732  3.3292 
 +
 +Coefficients:
 +                 Estimate Std. Error t value Pr(>|t|)    
 +(Intercept)      5.475226   0.505005   10.84   <2e-16 ***
 +CompPrice        0.092571   0.004123   22.45   <2e-16 ***
 +Income           0.015785   0.001838    8.59   <2e-16 ***
 +Advertising      0.115903   0.007724   15.01   <2e-16 ***
 +Price           -0.095319   0.002670  -35.70   <2e-16 ***
 +ShelveLocGood    4.835675   0.152499   31.71   <2e-16 ***
 +ShelveLocMedium  1.951993   0.125375   15.57   <2e-16 ***
 +Age             -0.046128   0.003177  -14.52   <2e-16 ***
 +---
 +Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
 +
 +Residual standard error: 1.019 on 392 degrees of freedom
 +Multiple R-squared:  0.872, Adjusted R-squared:  0.8697 
 +F-statistic: 381.4 on 7 and 392 DF,  p-value: < 2.2e-16
 </WRAP> </WRAP>
 </WRAP> </WRAP>
multiple_regression_examples.txt · Last modified: 2023/10/21 13:26 by hkimscil

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