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Type 'q()' to quit R. > y <- c(3.43,3.57,4.29,2.71,3.14,3.14,3.57,3.29,2.43,3.00,2.71,2.71,2.14,2.29,3.29,3.86,3.14,2.00,3.14,3.29,3.29,3.00,2.71,2.57,2.86,3.29,3.57,2.71,3.43,3.14,3.57,3.71,4.14,4.57,3.57,4.14,4.00,2.43,4.00,4.14,3.71,3.57,2.00,3.57,3.71,2.86,2.57,4.57,3.57,3.57,3.29,3.00,2.86,2.14,4.29,3.43,3.71,3.43,3.14,2.00,3.43,3.43,3.43,3.43,2.71,4.43,3.14,3.86,2.71,3.57,2.86,3.00,3.86,3.29,3.57,2.86,3.00,3.14,3.29,3.57,3.57,2.43,2.71,3.57,2.71,2.86,3.71,3.29,3.86,2.43,2.43,2.71,2.43,3.14,3.00,4.57,3.00,3.00,2.57,2.57,3.29,2.71,2.86,3.00,2.86,2.43,2.57,2.71,3.14,2.14,2.00,2.57,3.43,5.00,4.14,3.00,3.57,2.86,3.14,1.86,3.71,2.43,3.57,2.86,2.71,3.00,3.14,3.43,3.00,3.71,3.43,2.29,3.29,2.57,2.29,3.71,2.71,3.00,3.00,3.14,3.29,4.14,3.00,3.00,3.29,3.86,3.57,3.00,1.43,2.86,3.71,3.43,4.14,2.71,3.43,2.71,3.43,3.14,2.43) > x <- c(2.2,1.4,3.4,2,2.4,2.4,2.2,2.2,2.4,2.6,2.8,3.2,2.2,2,2.2,3,1.8,2.2,3.4,3.4,2.2,3.6,2.8,2,2.2,3,3,2.6,3.2,2.6,1.8,3.6,3.6,2.4,3.4,1.8,1.8,2.4,3.6,2.4,3.6,2.8,3,3.2,2,2.2,2.8,1.8,2.4,3.4,1,2.4,2.4,1.2,4.8,2.4,2.4,2.8,1.4,2.6,2.4,2.6,2.8,1.6,2.2,1.8,2.2,2.6,2,2.2,2.4,1.8,3,3.6,3,2.4,2.6,2.8,2,2.6,2.6,2.2,2.6,3.2,1.6,3.2,2.2,1.8,3.2,2.4,2.8,1.6,1.8,3,2.2,4.2,2.8,3.6,2.4,2.6,3,2.4,3.8,3,2.2,2.2,2,2.6,3,2.4,2.4,3.2,1.8,3.6,1.6,2.6,3.4,1.8,3,1.6,1.4,2.4,2.8,1.2,1.6,3.4,2,2.2,2.8,2.2,2.6,2.4,2.2,1.8,2.4,4,2.4,2.6,2.4,2.4,1.8,3,4.8,1.4,3.4,2.2,3.4,2.2,2.4,2.8,2.2,3.2,4.2,2.8,4,2.6,2.2,3,3.8) > 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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > par1 <- as.numeric(par1) > library(lattice) > z <- as.data.frame(cbind(x,y)) > m <- lm(y~x) > summary(m) Call: lm(formula = y ~ x) Residuals: Min 1Q Median 3Q Max -1.69675 -0.41675 -0.02937 0.34587 1.61752 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.61529 0.18004 14.53 < 2e-16 *** x 0.21311 0.06765 3.15 0.00196 ** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.586 on 157 degrees of freedom Multiple R-squared: 0.05944, Adjusted R-squared: 0.05345 F-statistic: 9.923 on 1 and 157 DF, p-value: 0.001955 > postscript(file="/var/www/html/rcomp/tmp/120f81290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(z,main='Scatterplot, lowess, and regression line') > lines(lowess(z),col='red') > abline(m) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/220f81290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m2 <- lm(m$fitted.values ~ x) > summary(m2) Call: lm(formula = m$fitted.values ~ x) Residuals: Min 1Q Median 3Q Max -9.584e-16 -1.817e-16 -4.954e-17 6.790e-17 6.978e-15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.615e+00 1.777e-16 1.472e+16 <2e-16 *** x 2.131e-01 6.675e-17 3.192e+15 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 5.782e-16 on 157 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 1.019e+31 on 1 and 157 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$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/html/rcomp/tmp/3d9et1290675740.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 -1.69675 -0.41675 -0.02937 0.34587 1.61752 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.547e-17 1.800e-01 8.59e-17 1 x 1.282e-17 6.765e-02 1.89e-16 1 Residual standard error: 0.586 on 157 degrees of freedom Multiple R-squared: 8.775e-33, Adjusted R-squared: -0.006369 F-statistic: 1.378e-30 on 1 and 157 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$residuals)) > names(z3) <- list('x','Residuals') > plot(z3,main='Scatterplot, lowess, and regression line') > lines(lowess(z3),col='red') > abline(m3) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/460ve1290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m4 <- lm(m$fitted.values ~ m$residuals) > summary(m4) Call: lm(formula = m$fitted.values ~ m$residuals) Residuals: Min 1Q Median 3Q Max -0.33481 -0.07908 -0.03646 0.09141 0.47500 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 3.163e+00 1.168e-02 270.8 <2e-16 *** m$residuals 4.536e-17 2.006e-02 2.26e-15 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.1473 on 157 degrees of freedom Multiple R-squared: 5.603e-29, Adjusted R-squared: -0.006369 F-statistic: 8.796e-27 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/html/rcomp/tmp/5grdz1290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$residuals) > z5 <- as.data.frame(cbind(lag(myr,1),myr)) > names(z5) <- list('Lagged Residuals','Residuals') > plot(z5,main='Lag plot') > m5 <- lm(z5) > summary(m5) Call: lm(formula = z5) Residuals: Min 1Q Median 3Q Max -1.68032 -0.40761 -0.02391 0.34641 1.67538 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -0.003181 0.046146 -0.069 0.9451 Residuals 0.157461 0.079734 1.975 0.0501 . --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.58 on 156 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.02439, Adjusted R-squared: 0.01814 F-statistic: 3.9 on 1 and 156 DF, p-value: 0.05005 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/69ic21290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/79ic21290675740.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/89ic21290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/www/html/rcomp/tmp/92st51290675740.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqnorm(x) > qqline(x) > grid() > dev.off() null device 1 > > #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/html/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Simple Linear Regression',5,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'Statistics',1,TRUE) > a<-table.element(a,'Estimate',1,TRUE) > a<-table.element(a,'S.D.',1,TRUE) > a<-table.element(a,'T-STAT (H0: coeff=0)',1,TRUE) > a<-table.element(a,'P-value (two-sided)',1,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'constant term',header=TRUE) > a<-table.element(a,m$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/10quuq1290675741.tab") > > try(system("convert tmp/120f81290675740.ps tmp/120f81290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/220f81290675740.ps tmp/220f81290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/3d9et1290675740.ps tmp/3d9et1290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/460ve1290675740.ps tmp/460ve1290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/5grdz1290675740.ps tmp/5grdz1290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/69ic21290675740.ps tmp/69ic21290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/79ic21290675740.ps tmp/79ic21290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/89ic21290675740.ps tmp/89ic21290675740.png",intern=TRUE)) character(0) > try(system("convert tmp/92st51290675740.ps tmp/92st51290675740.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 1.967 1.498 4.827