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Type 'q()' to quit R. > y <- c(12,11,14,12,21,12,22,11,10,13,10,8,15,14,10,14,14,11,10,13,7,14,12,14,11,9,11,15,14,13,9,15,10,11,13,8,20,12,10,10,9,14,8,14,11,13,9,11,15,11,10,14,18,14,11,12,13,9,10,15,20,12,12,14,13,11,17,12,13,14,13,15,13,10,11,19,13,17,13,9,11,10,9,12,12,13,13,12,15,22,13,15,13,15,10,11,16,11,11,10,10,16,12,11,16,19,11,16,15,24,14,15,11,15,12,10) > x <- c(14,18,11,12,16,18,14,14,15,15,17,19,10,16,18,14,14,17,14,16,18,11,14,12,17,9,16,14,15,11,16,13,17,15,14,16,9,15,17,13,15,16,16,12,12,11,15,15,17,13,16,14,11,12,12,15,16,15,12,12,8,13,11,14,15,10,11,12,15,15,14,16,15,15,13,12,17,13,15,13,15,16,15,16,15,14,15,14,13,7,17,13,15,14,13,16,12,14,17,15,17,12,16,11,15,9,16,15,10,10,15,11,13,14,18,16) > 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 -7.1549 -1.8498 -0.1857 1.5412 9.4400 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 22.0627 1.5136 14.576 < 2e-16 *** x -0.6564 0.1061 -6.187 9.87e-09 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 2.708 on 114 degrees of freedom Multiple R-squared: 0.2514, Adjusted R-squared: 0.2448 F-statistic: 38.28 on 1 and 114 DF, p-value: 9.867e-09 > postscript(file="/var/wessaorg/rcomp/tmp/15hq41321371323.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/290hb1321371323.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 -2.456e-15 -7.910e-17 4.120e-17 1.222e-16 7.247e-15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.206e+01 4.830e-16 4.567e+16 <2e-16 *** x -6.564e-01 3.386e-17 -1.939e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 8.641e-16 on 114 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 3.759e+32 on 1 and 114 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/32sjo1321371323.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -7.1549 -1.8498 -0.1857 1.5412 9.4400 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.014e-16 1.514e+00 0 1 x -7.064e-18 1.061e-01 0 1 Residual standard error: 2.708 on 114 degrees of freedom Multiple R-squared: 0, Adjusted R-squared: -0.008772 F-statistic: 0 on 1 and 114 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$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/4vfz51321371323.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 -3.2368 -1.2676 -0.2829 1.3581 4.6402 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.283e+01 1.457e-01 88.05 <2e-16 *** m$residuals -1.892e-17 5.428e-02 0.00 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.569 on 114 degrees of freedom Multiple R-squared: 4.047e-31, Adjusted R-squared: -0.008772 F-statistic: 4.613e-29 on 1 and 114 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/58l4n1321371323.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$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 -7.163 -1.872 -0.190 1.592 9.440 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.007541 0.253501 0.030 0.976 Residuals 0.003646 0.094167 0.039 0.969 Residual standard error: 2.718 on 113 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 1.327e-05, Adjusted R-squared: -0.008836 F-statistic: 0.001499 on 1 and 113 DF, p-value: 0.9692 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/6uqlp1321371323.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/73z8z1321371324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/8bqcg1321371324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/982kh1321371324.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/1022s51321371324.tab") > > try(system("convert tmp/15hq41321371323.ps tmp/15hq41321371323.png",intern=TRUE)) character(0) > try(system("convert tmp/290hb1321371323.ps tmp/290hb1321371323.png",intern=TRUE)) character(0) > try(system("convert tmp/32sjo1321371323.ps tmp/32sjo1321371323.png",intern=TRUE)) character(0) > try(system("convert tmp/4vfz51321371323.ps tmp/4vfz51321371323.png",intern=TRUE)) character(0) > try(system("convert tmp/58l4n1321371323.ps tmp/58l4n1321371323.png",intern=TRUE)) character(0) > try(system("convert tmp/6uqlp1321371323.ps tmp/6uqlp1321371323.png",intern=TRUE)) character(0) > try(system("convert tmp/73z8z1321371324.ps tmp/73z8z1321371324.png",intern=TRUE)) character(0) > try(system("convert tmp/8bqcg1321371324.ps tmp/8bqcg1321371324.png",intern=TRUE)) character(0) > try(system("convert tmp/982kh1321371324.ps tmp/982kh1321371324.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.706 0.461 3.226