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Type 'q()' to quit R. > y <- c(30,12,15,40,512,1500,16,8000,7,20,128,256,256,4000,8000,16000,32000,130,256,8000,8000,20,20,5,128,128,1000,30,512,8000,512,512,512,256,192,512,64,20,8,12,8,60,1,4,32,10,10,9,30,51,16000,46,32000,16000,256,16000,7,48,100,16000) > x <- c(129.99,59.99,49.99,84.99,179.99,329.99,25.99,499.99,89.99,119.99,79.99,199.99,449.99,549.99,529.99,639.99,749.99,399.99,169.99,189.99,199.99,69.99,69.99,109.99,159.99,159.99,199.99,75,349.99,439.99,309.99,379.99,349.99,169.99,239.99,229.99,69.99,99.99,29.99,39.99,21.99,499.99,29.99,29.99,49.99,49.99,55.99,59.99,79.99,139.99,159.99,169.99,229.99,249.99,309.99,499.99,65.99,89.99,89.99,449.99) > 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 -9707.8 -2163.5 -447.5 407.3 28287.4 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -1445.330 1213.372 -1.191 0.238 x 22.427 4.432 5.060 4.51e-06 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 6017 on 58 degrees of freedom Multiple R-squared: 0.3063, Adjusted R-squared: 0.2943 F-statistic: 25.61 on 1 and 58 DF, p-value: 4.513e-06 > postscript(file="/var/wessaorg/rcomp/tmp/1t5rd1321899805.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/2ccdg1321899805.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 -1.510e-12 -2.188e-13 -7.161e-14 1.459e-13 2.466e-12 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -1.445e+03 1.062e-13 -1.36e+16 <2e-16 *** x 2.243e+01 3.880e-16 5.78e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 5.268e-13 on 58 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 3.341e+33 on 1 and 58 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/3vejw1321899805.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -9707.8 -2163.5 -447.5 407.3 28287.4 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -9.855e-14 1.213e+03 0 1 x 2.069e-16 4.432e+00 0 1 Residual standard error: 6017 on 58 degrees of freedom Multiple R-squared: 9.649e-35, Adjusted R-squared: -0.01724 F-statistic: 5.596e-33 on 1 and 58 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$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/4absv1321899805.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 -4224 -3147 -1129 2347 12103 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 3.272e+03 5.162e+02 6.338 3.75e-08 *** m$residuals 2.515e-17 8.725e-02 0.000 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 3998 on 58 degrees of freedom Multiple R-squared: 7.115e-32, Adjusted R-squared: -0.01724 F-statistic: 4.127e-30 on 1 and 58 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/5mlpm1321899805.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$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 -9879.5 -1996.0 -508.1 374.8 28561.2 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 41.3287 782.8566 0.053 0.958 Residuals 0.1358 0.1329 1.021 0.311 Residual standard error: 6012 on 57 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.01797, Adjusted R-squared: 0.0007431 F-statistic: 1.043 on 1 and 57 DF, p-value: 0.3114 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/6fflu1321899805.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/7st3i1321899805.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/88w421321899805.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/92vge1321899805.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/108uv41321899806.tab") > > try(system("convert tmp/1t5rd1321899805.ps tmp/1t5rd1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/2ccdg1321899805.ps tmp/2ccdg1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/3vejw1321899805.ps tmp/3vejw1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/4absv1321899805.ps tmp/4absv1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/5mlpm1321899805.ps tmp/5mlpm1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/6fflu1321899805.ps tmp/6fflu1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/7st3i1321899805.ps tmp/7st3i1321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/88w421321899805.ps tmp/88w421321899805.png",intern=TRUE)) character(0) > try(system("convert tmp/92vge1321899805.ps tmp/92vge1321899805.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.499 0.416 2.936