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Type 'q()' to quit R. > y <- c(5,2,6,6,5,5,6,6,5,5,5,6,5,5,6,6,4,5,5,5,5,7,6,6,6,6,4,5,6,4,5,5,5,7,7,6,7,6,5,6,4,6,5,5,6,6,5,6,5,5,5,6,6,5,7,6,5,5,6,5,5,6,6,3,5,5,6,5,5,4,5,5,2,6,6,6,6,5,5,6,5,5,6,3,6,3,5,6,5,6,6,6,5,3,7,6,6,5,4,6,6,6,5,6,6,2,6,5,3,4,6,6,4,6,4,5,6,5,5,6,6,5,6,5,2,6,6,5,5,5,2,5,6,6,5,5,3,6,6,6,5,7,6,6,6,7,6,6) > x <- c(10,20,40,67,38,61,29,30,0,10,39,70,65,77,29,60,45,50,31,91,56,20,65,60,27,47,60,10,60,90,15,65,5,72,70,80,70,40,20,75,30,40,20,82,50,87,26,61,67,24,70,80,10,70,50,82,38,70,76,70,90,70,70,13,35,10,66,30,0,35,80,70,55,74,40,50,63,60,35,25,40,40,56,18,60,52,61,50,0,71,39,80,71,55,80,40,72,40,70,100,93,25,40,68,80,25,91,79,70,76,65,64,70,80,65,82,48,60,60,65,65,60,38,70,75,67,90,71,68,80,18,65,30,76,71,70,0,78,49,40,80,90,62,71,80,80,67,35) > par1 = '0' > #'GNU S' R Code compiled by R2WASP v. 1.0.44 () > #Author: Prof. Dr. P. Wessa > #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > par1 <- as.numeric(par1) > library(lattice) > z <- as.data.frame(cbind(x,y)) > m <- lm(y~x) > summary(m) Call: lm(formula = y ~ x) Residuals: Min 1Q Median 3Q Max -3.5258 -0.4696 0.2663 0.6231 2.0921 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.683234 0.209037 22.404 < 2e-16 *** x 0.011234 0.003507 3.204 0.00167 ** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.015 on 146 degrees of freedom Multiple R-squared: 0.06568, Adjusted R-squared: 0.05928 F-statistic: 10.26 on 1 and 146 DF, p-value: 0.001666 > postscript(file="/var/www/html/rcomp/tmp/1lrss1289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(z,main='Scatterplot, lowess, and regression line') > lines(lowess(z),col='red') > abline(m) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/2lrss1289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m2 <- lm(m$fitted.values ~ x) > summary(m2) Call: lm(formula = m$fitted.values ~ x) Residuals: Min 1Q Median 3Q Max -7.960e-16 -4.317e-16 -1.076e-16 1.829e-16 1.641e-14 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.683e+00 2.905e-16 1.612e+16 <2e-16 *** x 1.123e-02 4.874e-18 2.305e+15 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.41e-15 on 146 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 5.313e+30 on 1 and 146 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/3d09d1289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -3.5258 -0.4696 0.2663 0.6231 2.0921 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.432e-16 2.090e-01 6.85e-16 1 x -1.535e-18 3.507e-03 -4.38e-16 1 Residual standard error: 1.015 on 146 degrees of freedom Multiple R-squared: 5.842e-33, Adjusted R-squared: -0.006849 F-statistic: 8.53e-31 on 1 and 146 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$residuals)) > names(z3) <- list('x','Residuals') > plot(z3,main='Scatterplot, lowess, and regression line') > lines(lowess(z3),col='red') > abline(m3) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/4o9rg1289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m4 <- lm(m$fitted.values ~ m$residuals) > summary(m4) Call: lm(formula = m$fitted.values ~ m$residuals) Residuals: Min 1Q Median 3Q Max -0.6141 -0.1872 0.0712 0.1835 0.5093 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 5.297e+00 2.212e-02 239.5 <2e-16 *** m$residuals -4.527e-18 2.194e-02 -2.06e-16 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.2691 on 146 degrees of freedom Multiple R-squared: 2.762e-30, Adjusted R-squared: -0.006849 F-statistic: 4.032e-28 on 1 and 146 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/5z0811289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$residuals) > z5 <- as.data.frame(cbind(lag(myr,1),myr)) > names(z5) <- list('Lagged Residuals','Residuals') > plot(z5,main='Lag plot') > m5 <- lm(z5) > summary(m5) Call: lm(formula = z5) Residuals: Min 1Q Median 3Q Max -3.5095 -0.4600 0.2751 0.6285 2.1033 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -0.001188 0.083933 -0.014 0.989 Residuals 0.032187 0.083229 0.387 0.700 Residual standard error: 1.018 on 145 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.00103, Adjusted R-squared: -0.005859 F-statistic: 0.1496 on 1 and 145 DF, p-value: 0.6995 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/6z0811289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/7asp41289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/8asp41289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/9k1671289743946.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqnorm(x) > qqline(x) > grid() > dev.off() null device 1 > > #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/html/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Simple Linear Regression',5,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'Statistics',1,TRUE) > a<-table.element(a,'Estimate',1,TRUE) > a<-table.element(a,'S.D.',1,TRUE) > a<-table.element(a,'T-STAT (H0: coeff=0)',1,TRUE) > a<-table.element(a,'P-value (two-sided)',1,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'constant term',header=TRUE) > a<-table.element(a,m$coefficients[[1]]) > sd <- sqrt(vcov(m)[1,1]) > a<-table.element(a,sd) > tstat <- m$coefficients[[1]]/sd > a<-table.element(a,tstat) > pval <- 2*(1-pt(abs(tstat),length(x)-2)) > a<-table.element(a,pval) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'slope',header=TRUE) > a<-table.element(a,m$coefficients[[2]]) > sd <- sqrt(vcov(m)[2,2]) > a<-table.element(a,sd) > tstat <- m$coefficients[[2]]/sd > a<-table.element(a,tstat) > pval <- 2*(1-pt(abs(tstat),length(x)-2)) > a<-table.element(a,pval) > a<-table.row.end(a) > a<-table.end(a) > table.save(a,file="/var/www/html/rcomp/tmp/10yt4g1289743946.tab") > > try(system("convert tmp/1lrss1289743946.ps tmp/1lrss1289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/2lrss1289743946.ps tmp/2lrss1289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/3d09d1289743946.ps tmp/3d09d1289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/4o9rg1289743946.ps tmp/4o9rg1289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/5z0811289743946.ps tmp/5z0811289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/6z0811289743946.ps tmp/6z0811289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/7asp41289743946.ps tmp/7asp41289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/8asp41289743946.ps tmp/8asp41289743946.png",intern=TRUE)) character(0) > try(system("convert tmp/9k1671289743946.ps tmp/9k1671289743946.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 1.893 1.409 2.316