RAssignment 2Sep 23Cont.docx

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RAssignment 2Sep 23Cont.docx

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RAssignment 2Sep 23Cont.docx

RAssignment2Sep23Cont

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-16.343-6.270-1.2865.52822.403

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)2.07991.63161.2750.210

x12.03480.35715.6981.61e-06***

x22.82760.252511.1991.92e-13***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

9.5on37degreesoffreedom

MultipleR-squared:

0.8137,AdjustedR-squared:

0.8037

F-statistic:

80.83on2and37DF,p-value:

3.14e-14

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-14.4131-5.1388-0.50285.293625.1226

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)2.69551.52791.7640.086.

x11.51910.33444.5425.74e-05***

x22.66840.236511.2851.54e-13***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

8.896on37degreesoffreedom

MultipleR-squared:

0.8032,AdjustedR-squared:

0.7926

F-statistic:

75.52on2and37DF,p-value:

8.675e-14

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-18.8149-4.5776-0.66255.864514.0127

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)2.40131.28971.8620.0706.

x12.56850.28239.0995.64e-11***

x22.77010.199613.8793.05e-16***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

7.509on37degreesoffreedom

MultipleR-squared:

0.8843,AdjustedR-squared:

0.8781

F-statistic:

141.4on2and37DF,p-value:

<2.2e-16

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-16.8775-6.37270.96874.978015.7572

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)2.90191.42502.0360.0489*

x12.06970.31196.6368.7e-08***

x23.09720.220514.044<2e-16***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

8.297on37degreesoffreedom

MultipleR-squared:

0.8696,AdjustedR-squared:

0.8626

F-statistic:

123.4on2and37DF,p-value:

<2.2e-16

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-18.624-5.4431.2454.21515.054

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)0.24331.53130.1590.875

x12.07580.33516.1943.43e-07***

x22.98570.237012.5995.93e-15***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

8.916on37degreesoffreedom

MultipleR-squared:

0.845,AdjustedR-squared:

0.8366

F-statistic:

100.9on2and37DF,p-value:

1.048e-15

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-21.6102-6.7581-0.20676.613921.4020

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)2.49381.65521.5070.140

x11.86540.36235.1498.89e-06***

x22.78450.256210.8704.49e-13***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

9.637on37degreesoffreedom

MultipleR-squared:

0.8,AdjustedR-squared:

0.7892

F-statistic:

74on2and37DF,p-value:

1.172e-13

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-16.906-6.4831.5905.68515.206

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)3.53581.44482.4470.0193*

x11.91190.31626.0465.44e-07***

x22.94820.223613.1861.49e-15***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

8.412on37degreesoffreedom

MultipleR-squared:

0.8533,AdjustedR-squared:

0.8453

F-statistic:

107.6on2and37DF,p-value:

3.811e-16

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-16.4157-7.8264-0.40648.564921.5937

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)1.64981.58991.0380.306

x12.00100.34805.7501.37e-06***

x23.40900.246113.8553.22e-16***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

9.257on37degreesoffreedom

MultipleR-squared:

0.8613,AdjustedR-squared:

0.8538

F-statistic:

114.9on2and37DF,p-value:

<2.2e-16

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-17.4926-4.3796-0.95673.814020.7822

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)0.22391.52670.1470.884

x12.45440.33427.3459.88e-09***

x23.00900.236312.7354.29e-15***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

8.89on37degreesoffreedom

MultipleR-squared:

0.857,AdjustedR-squared:

0.8492

F-statistic:

110.8on2and37DF,p-value:

2.378e-16

>error=rnorm(T,mean=0,sd=9)

>y=1+2*x1+3*x2+error

>fyx=y~x1+x2

>res=lm(fyx)

>summary(res)

Call:

lm(formula=fyx)

Residuals:

Min1QMedian3QMax

-25.568-7.7062.5296.13220.302

Coefficients:

EstimateStd.ErrortvaluePr(>|t|)

(Intercept)2.85791.77161.6130.11520

x11.41790.38773.6570.00079***

x22.58700.27429.4362.18e-11***

---

Signif.codes:

0‘***’0.001‘**’0.01‘*’0.05‘.’0.1‘’1

Residualstandarderror:

10.32on37degreesoffreedom

MultipleR-squared:

0.7385,AdjustedR-squared:

0.7243

F-statistic:

52.23on2and37DF,p-value:

1.677e-11

#wehaveatime-seriesofTlength

T=40

#generatetwovariablesx1andx2

x1=rnorm(T,mean=1,sd=4)

x2=rnorm(T,mean=2,sd=6)

fxx=x1~x2

summary(lm(fxx))

error=rnorm(T,mean=0,sd=9)

y=1+2*x1+3*x2+error

fyx=y~x1+x2

res=lm(fyx)

summary(res)

print('printtheestimateoftheslopecoefficienttox1')

z=res$coefficient[2]

z

print('printtheestimateoftheslopecoefficienttox2')

z=res$coefficients[3]

z

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