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Type 'q()' to quit R. > y <- c(11,7,17,10,12,12,11,11,12,13,14,16,11,10,11,15,9,11,17,17,11,18,14,10,11,15,15,13,16,13,9,18,18,12,17,9,9,12,18,12,18,14,15,16,10,11,14,9,12,17,5,12,12,6,24,12,12,14,7,13,12,13,14,8,11,9,11,13,10,11,12,9,15,18,15,12,13,14,10,13,13,11,13,16,8,16,11,9,16,12,14,8,9,15,11,21,14,18,12,13,15,12,19,15,11,11,10,13,15,12,12,16,9,18,8,13,17,9,15,8,7,12,14,6,8,17,10,11,14,11,13,12,11,9,12,20,12,13,12,12,9,15,24,7,17,11,17,11,12,14,11,16,21,14,20,13,11,15,19) > x <- c(14,11,6,12,8,10,10,11,16,11,13,12,8,12,11,4,9,8,8,14,15,16,9,14,11,8,9,9,9,9,10,16,11,8,9,16,11,16,12,12,14,9,10,9,10,12,14,14,10,14,16,9,10,6,8,13,10,8,7,15,9,10,12,13,10,11,8,9,13,11,8,9,9,15,9,10,14,12,12,11,14,6,12,8,14,11,10,14,12,10,14,5,11,10,9,10,16,13,9,10,10,7,9,8,14,14,8,9,14,14,8,8,8,7,6,8,6,11,14,11,11,11,14,8,20,11,8,11,10,14,11,9,9,8,10,13,13,12,8,13,14,12,14,15,13,16,9,9,9,8,7,16,11,9,11,9,14,13,16) > 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 -8.0265 -1.9595 -0.7584 2.1746 11.2416 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 12.49018 1.10373 11.316 <2e-16 *** x 0.03352 0.09815 0.342 0.733 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 3.455 on 157 degrees of freedom Multiple R-squared: 0.0007424, Adjusted R-squared: -0.005622 F-statistic: 0.1166 on 1 and 157 DF, p-value: 0.7332 > postscript(file="/var/wessaorg/rcomp/tmp/10sli1321400337.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/wessaorg/rcomp/tmp/29icw1321400337.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 -5.388e-15 -3.280e-16 7.750e-17 4.911e-16 1.165e-15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.249e+01 2.386e-16 5.235e+16 <2e-16 *** x 3.352e-02 2.122e-17 1.580e+15 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 7.468e-16 on 157 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 2.497e+30 on 1 and 157 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/30l461321400337.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -8.0265 -1.9595 -0.7584 2.1746 11.2416 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -3.251e-18 1.104e+00 0 1 x -4.842e-18 9.815e-02 0 1 Residual standard error: 3.455 on 157 degrees of freedom Multiple R-squared: 3.552e-34, Adjusted R-squared: -0.006369 F-statistic: 5.577e-32 on 1 and 157 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$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/wessaorg/rcomp/tmp/4gct91321400337.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 -0.231075 -0.063461 0.003584 0.070630 0.305290 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.286e+01 7.469e-03 1721 <2e-16 *** m$residuals -2.548e-17 2.175e-03 0 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.09418 on 157 degrees of freedom Multiple R-squared: 1.45e-28, Adjusted R-squared: -0.006369 F-statistic: 2.277e-26 on 1 and 157 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/5rs8h1321400337.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$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 -7.4730 -2.2628 -0.4089 2.1081 11.3258 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.007156 0.272870 0.026 0.9791 Residuals -0.138762 0.079991 -1.735 0.0848 . --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 3.43 on 156 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.01893, Adjusted R-squared: 0.01264 F-statistic: 3.009 on 1 and 156 DF, p-value: 0.08477 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/6ms7s1321400337.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/7nm8j1321400337.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/8ifei1321400337.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/98z0h1321400337.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/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/wessaorg/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/wessaorg/rcomp/tmp/10idei1321400337.tab") > > try(system("convert tmp/10sli1321400337.ps tmp/10sli1321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/29icw1321400337.ps tmp/29icw1321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/30l461321400337.ps tmp/30l461321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/4gct91321400337.ps tmp/4gct91321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/5rs8h1321400337.ps tmp/5rs8h1321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/6ms7s1321400337.ps tmp/6ms7s1321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/7nm8j1321400337.ps tmp/7nm8j1321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/8ifei1321400337.ps tmp/8ifei1321400337.png",intern=TRUE)) character(0) > try(system("convert tmp/98z0h1321400337.ps tmp/98z0h1321400337.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.651 0.459 3.117