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Type 'q()' to quit R. > y <- c(24,25,17,18,18,16,20,16,18,17,23,30,23,18,15,12,21,15,20,31,27,34,21,31,19,16,20,21,22,17,24,25,26,25,17,32,33,13,32,25,29,22,18,17,20,15,20,33,29,23,26,18,20,11,28,26,22,17,12,14,17,21,19,18,10,29,31,19,9,20,28,19,30,29,26,23,13,21,19,28,23,18,21,20,23,21,21,15,28,19,26,10,16,22,19,31,31,29,19,22,23,15,20,18,23,25,21,24,25,17,13,28,21,25,9,16,19,17,25,20,29,14,22,15,19,20,15,20,18,33,22,16,17,16,21,26,18,18,17,22,30,30,24,21,21,29,31,20,16,22,20,28,38,22,20,17,28,22,31) > x <- c(12,8,8,8,9,7,4,11,7,7,12,10,10,8,8,4,9,8,7,11,9,11,13,8,8,9,6,9,9,6,6,16,5,7,9,6,6,5,12,7,10,9,8,5,8,8,10,6,8,7,4,8,8,4,20,8,8,6,4,8,9,6,7,9,5,5,8,8,6,8,7,7,9,11,6,8,6,9,8,6,10,8,8,10,5,7,5,8,14,7,8,6,5,6,10,12,9,12,7,8,10,6,10,10,10,5,7,10,11,6,7,12,11,11,11,5,8,6,9,4,4,7,11,6,7,8,4,8,9,8,11,8,5,4,8,10,6,9,9,13,9,10,20,5,11,6,9,7,9,10,9,8,7,6,13,6,8,10,16) > par1 = '0' > 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 -14.408 -3.450 -1.323 3.721 17.221 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 16.1785 1.3883 11.653 < 2e-16 *** x 0.6572 0.1604 4.098 6.65e-05 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 5.457 on 157 degrees of freedom Multiple R-squared: 0.09664, Adjusted R-squared: 0.09089 F-statistic: 16.8 on 1 and 157 DF, p-value: 6.653e-05 > postscript(file="/var/www/rcomp/tmp/1zitp1321375753.ps",horizontal=F,onefile=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/rcomp/tmp/2tpbt1321375753.ps",horizontal=F,onefile=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 -5.245e-15 -7.320e-16 1.215e-16 6.370e-16 1.834e-15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.618e+01 2.835e-16 5.706e+16 <2e-16 *** x 6.572e-01 3.275e-17 2.007e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.114e-15 on 157 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 4.028e+32 on 1 and 157 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/371lr1321375753.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -14.408 -3.450 -1.323 3.721 17.221 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 8.954e-17 1.388e+00 0 1 x -4.544e-18 1.604e-01 0 1 Residual standard error: 5.457 on 157 degrees of freedom Multiple R-squared: 6.325e-35, Adjusted R-squared: -0.006369 F-statistic: 9.93e-33 on 1 and 157 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$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/rcomp/tmp/45jf01321375753.ps",horizontal=F,onefile=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 -2.7776 -1.4632 -0.1488 1.1656 7.7377 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.158e+01 1.415e-01 152.5 <2e-16 *** m$residuals -1.339e-17 2.610e-02 0.0 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.785 on 157 degrees of freedom Multiple R-squared: 4.038e-31, Adjusted R-squared: -0.006369 F-statistic: 6.34e-29 on 1 and 157 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/5b2dg1321375753.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$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 -14.6325 -3.5781 -0.9638 3.5536 16.3074 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.004187 0.431310 0.010 0.9923 Residuals 0.138559 0.079454 1.744 0.0831 . --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 5.421 on 156 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.01912, Adjusted R-squared: 0.01283 F-statistic: 3.041 on 1 and 156 DF, p-value: 0.08315 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/6pye61321375753.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/74bkf1321375753.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/84mq41321375753.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/95jtz1321375753.ps",horizontal=F,onefile=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/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/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/rcomp/tmp/1095sg1321375753.tab") > > try(system("convert tmp/1zitp1321375753.ps tmp/1zitp1321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/2tpbt1321375753.ps tmp/2tpbt1321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/371lr1321375753.ps tmp/371lr1321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/45jf01321375753.ps tmp/45jf01321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/5b2dg1321375753.ps tmp/5b2dg1321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/6pye61321375753.ps tmp/6pye61321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/74bkf1321375753.ps tmp/74bkf1321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/84mq41321375753.ps tmp/84mq41321375753.png",intern=TRUE)) character(0) > try(system("convert tmp/95jtz1321375753.ps tmp/95jtz1321375753.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 3.360 0.516 5.531