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Type 'q()' to quit R. > y <- c(55,20,80,52,75,30,90,68,24,60,65,60,80,65,90,65,76,70,38,60,10,5,93,70,61,72,40,75,100,29,70,25,70,82,40,50,70,91,10,25,56,30,74,60,80,80,60,64,40,80,71,65,90,68,76,25,79,40,61,27,70,40,13,15,38,47,65,62,50,80,87,40,80,20,60,48,70,91,10,50,70,45,20,10,90,80,74,71,40,29,60,31,67,82,40,30,70,63,35,35,70,60,80,70,71) > x <- c(1,0,0,0,1,1,1,1,0,0,1,0,1,1,0,1,1,1,0,1,0,0,1,0,1,1,0,1,1,0,1,0,1,0,0,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,0,1,1,1,1,0,1,1,0,0,0,0,1,0,1,1,0,1,1,1,1,0,1,1,1,1,0,0,0,1,1,0,1,1,0,0,0,1,1,0,0,0,1,1,0,0,0,1,0,1,1,1,1) > 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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > par1 <- as.numeric(par1) > library(lattice) > z <- as.data.frame(cbind(x,y)) > m <- lm(y~x) > summary(m) Call: lm(formula = y ~ x) Residuals: Min 1Q Median 3Q Max -44.034 -16.565 2.435 15.966 42.435 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 47.565 3.217 14.786 < 2e-16 *** x 16.469 4.292 3.837 0.000215 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 21.82 on 103 degrees of freedom Multiple R-squared: 0.1251, Adjusted R-squared: 0.1166 F-statistic: 14.73 on 1 and 103 DF, p-value: 0.0002147 > postscript(file="/var/www/rcomp/tmp/1lne81290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(z,main='Scatterplot, lowess, and regression line') > lines(lowess(z),col='red') > abline(m) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/2lne81290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m2 <- lm(m$fitted.values ~ x) > summary(m2) Call: lm(formula = m$fitted.values ~ x) Residuals: Min 1Q Median 3Q Max -2.992e-14 -3.309e-15 -1.199e-15 -1.199e-15 2.101e-14 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.757e+01 8.154e-16 5.833e+16 <2e-16 *** x 1.647e+01 1.088e-15 1.514e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 5.531e-15 on 103 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 2.292e+32 on 1 and 103 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$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/3eweb1290511457.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 -44.034 -16.565 2.435 15.966 42.435 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -7.383e-16 3.217e+00 -2.29e-16 1 x -2.668e-16 4.292e+00 -6.22e-17 1 Residual standard error: 21.82 on 103 degrees of freedom Multiple R-squared: 2.098e-33, Adjusted R-squared: -0.009709 F-statistic: 2.161e-31 on 1 and 103 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$residuals)) > names(z3) <- list('x','Residuals') > plot(z3,main='Scatterplot, lowess, and regression line') > lines(lowess(z3),col='red') > abline(m3) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/475ve1290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m4 <- lm(m$fitted.values ~ m$residuals) > summary(m4) Call: lm(formula = m$fitted.values ~ m$residuals) Residuals: Min 1Q Median 3Q Max -9.254 -9.254 7.215 7.215 7.215 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 5.682e+01 8.051e-01 70.57 <2e-16 *** m$residuals 6.185e-18 3.726e-02 1.66e-16 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 8.25 on 103 degrees of freedom Multiple R-squared: 3.81e-30, Adjusted R-squared: -0.009709 F-statistic: 3.924e-28 on 1 and 103 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/575ve1290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$residuals) > z5 <- as.data.frame(cbind(lag(myr,1),myr)) > names(z5) <- list('Lagged Residuals','Residuals') > plot(z5,main='Lag plot') > m5 <- lm(z5) > summary(m5) Call: lm(formula = z5) Residuals: Min 1Q Median 3Q Max -44.235 -16.907 2.229 15.865 42.354 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.086461 2.148115 0.040 0.968 Residuals -0.006017 0.098979 -0.061 0.952 Residual standard error: 21.91 on 102 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 3.622e-05, Adjusted R-squared: -0.009767 F-statistic: 0.003695 on 1 and 102 DF, p-value: 0.9516 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/6zfch1290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/7s6bj1290511457.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/rcomp/tmp/8s6bj1290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/9s6bj1290511457.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqnorm(x) > qqline(x) > grid() > dev.off() null device 1 > > #Note: the /var/www/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Simple Linear Regression',5,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'Statistics',1,TRUE) > a<-table.element(a,'Estimate',1,TRUE) > a<-table.element(a,'S.D.',1,TRUE) > a<-table.element(a,'T-STAT (H0: coeff=0)',1,TRUE) > a<-table.element(a,'P-value (two-sided)',1,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'constant term',header=TRUE) > a<-table.element(a,m$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/10og9t1290511457.tab") > > try(system("convert tmp/1lne81290511457.ps tmp/1lne81290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/2lne81290511457.ps tmp/2lne81290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/3eweb1290511457.ps tmp/3eweb1290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/475ve1290511457.ps tmp/475ve1290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/575ve1290511457.ps tmp/575ve1290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/6zfch1290511457.ps tmp/6zfch1290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/7s6bj1290511457.ps tmp/7s6bj1290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/8s6bj1290511457.ps tmp/8s6bj1290511457.png",intern=TRUE)) character(0) > try(system("convert tmp/9s6bj1290511457.ps tmp/9s6bj1290511457.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.730 1.800 4.559