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Type 'q()' to quit R. > y <- c(2,2,2,1,2,2,2,2,2,2,1,2,1,2,2,1,1,2,1,2,1,2,2,2,1,2,1,2,2,1,2,1,2,2,1,1,1,1,2,1,1,2,1,1,2,2,2,2,2,1,2,1,1,2,1,2,2,2,1,2,1,1,2,2,2,1,2,1,2,1,1,2,2,1,1,2,2,2,1,1,1,1,2,1,2,2,1,2,2,2,2,2,2,2,2,2,2,2,1,1,2,1,2,1,2,1,2,1,1,2,2,2,2,1,2,1,2,2,2,2,2,2,2,2,2,2,1,2,2,2,1,1,2,1,1,2,1,1,2,2,1,2,1,2,1,2,2,1,1,1,2,2,1,2,2,2,2,2,2,2,2,2) > x <- c(41,39,30,31,34,35,39,34,36,37,38,36,38,39,33,32,36,38,39,32,32,31,39,37,39,41,36,33,33,34,31,27,37,34,34,32,29,36,29,35,37,34,38,35,38,37,38,33,36,38,32,32,32,34,32,37,39,29,37,35,30,38,34,31,34,35,36,30,39,35,38,31,34,38,34,39,37,34,28,37,33,37,35,37,32,33,38,33,29,33,31,36,35,32,29,39,37,35,37,32,38,37,36,32,33,40,38,41,36,43,30,31,32,32,37,37,33,34,33,38,33,31,38,37,33,31,39,44,33,35,32,28,40,27,37,32,28,34,30,35,31,32,30,30,31,40,32,36,32,35,38,42,34,35,35,33,36,32,33,34,32,34) > 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 -0.6827 -0.5991 0.3452 0.3893 0.4288 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.301942 0.395195 3.294 0.00121 ** x 0.009286 0.011361 0.817 0.41492 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.4865 on 160 degrees of freedom Multiple R-squared: 0.004158, Adjusted R-squared: -0.002066 F-statistic: 0.6681 on 1 and 160 DF, p-value: 0.4149 > postscript(file="/var/wessaorg/rcomp/tmp/1k0vj1321294061.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/2l1sr1321294061.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 -1.104e-16 -4.678e-17 -1.153e-17 1.334e-17 2.513e-15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.302e+00 1.649e-16 7.896e+15 <2e-16 *** x 9.286e-03 4.740e-18 1.959e+15 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 2.03e-16 on 160 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 3.838e+30 on 1 and 160 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/34tcq1321294061.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -0.6827 -0.5991 0.3452 0.3893 0.4288 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.129e-17 3.952e-01 0 1 x -8.285e-19 1.136e-02 0 1 Residual standard error: 0.4865 on 160 degrees of freedom Multiple R-squared: 0, Adjusted R-squared: -0.00625 F-statistic: 0 on 1 and 160 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$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/4va511321294061.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 -0.070792 -0.024361 -0.005789 0.022069 0.087071 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.623e+00 2.470e-03 657.2 <2e-16 *** m$residuals 2.701e-17 5.109e-03 0.0 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.03144 on 160 degrees of freedom Multiple R-squared: 5.269e-29, Adjusted R-squared: -0.00625 F-statistic: 8.43e-27 on 1 and 160 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/590oj1321294061.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$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 -0.7050 -0.5898 0.3213 0.4002 0.4644 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -0.002169 0.038279 -0.057 0.955 Residuals -0.083497 0.079076 -1.056 0.293 Residual standard error: 0.4857 on 159 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.006963, Adjusted R-squared: 0.0007178 F-statistic: 1.115 on 1 and 159 DF, p-value: 0.2926 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/6o5fi1321294061.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/7ecrr1321294061.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/81ajl1321294061.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/9be5x1321294061.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/10fyok1321294061.tab") > > try(system("convert tmp/1k0vj1321294061.ps tmp/1k0vj1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/2l1sr1321294061.ps tmp/2l1sr1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/34tcq1321294061.ps tmp/34tcq1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/4va511321294061.ps tmp/4va511321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/590oj1321294061.ps tmp/590oj1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/6o5fi1321294061.ps tmp/6o5fi1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/7ecrr1321294061.ps tmp/7ecrr1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/81ajl1321294061.ps tmp/81ajl1321294061.png",intern=TRUE)) character(0) > try(system("convert tmp/9be5x1321294061.ps tmp/9be5x1321294061.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.631 0.494 3.171