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Type 'q()' to quit R. > y <- c(2266,3213,1715,2219,2513,2194,1909,2305,2052,2378,1774,2706,1542,1697,1914,2609,2039,2024,1479,1387,1269,1272,1963,1384,1978,1736,2035,2209,1499,1342,1431,1497,1859,1479,1595,1465,1197,1345,1317,1509,1197,1604,1296,1199,1309,1808,1577,1133,1395,1391,1275,1068,1439,1232,1397,1330,1195,873,1169,1359,1169,1430,1172,1228,1108,1752,1109,967,1912,1212,1120,1463,1632,996,1601,843,1077,1484,958,1150,1134,693,1248,996,1053,1154,692,976,888,1107,1015,1196,1038,989,990,1000,1266,984,1157,1773,1020,939,783,1230,807,1179,1120,1051,962,1239,910,1019,756,872,880,803,1015,924,1022,841,1077,670,1577,918,822,870,620,724,866,883) > x <- c(77,72,70,68,63,63,62,62,62,62,60,60,58,57,57,56,53,53,52,52,50,50,50,49,49,48,48,48,48,48,47,47,47,46,46,46,45,45,44,43,43,43,43,43,42,41,41,41,41,41,41,40,40,40,39,38,38,38,38,38,38,37,37,37,37,36,36,36,36,35,35,35,35,34,34,34,34,33,33,33,32,32,31,31,31,31,31,30,30,30,30,30,30,30,30,30,30,30,29,28,28,28,28,28,27,27,26,26,26,25,25,25,25,25,25,25,25,24,24,24,23,22,22,22,22,22,22,22,21,21) > par1 = '100' > 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 -598.39 -166.18 -36.43 122.70 837.86 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 151.871 76.898 1.975 0.0504 . x 30.879 1.895 16.293 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 270.2 on 128 degrees of freedom Multiple R-squared: 0.6747, Adjusted R-squared: 0.6721 F-statistic: 265.5 on 1 and 128 DF, p-value: < 2.2e-16 > postscript(file="/var/wessaorg/rcomp/tmp/1dvvh1321373766.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/2acbp1321373766.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 -1.661e-12 -5.085e-14 3.900e-16 5.502e-14 4.411e-13 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.519e+02 4.869e-14 3.119e+15 <2e-16 *** x 3.088e+01 1.200e-15 2.573e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.711e-13 on 128 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 6.622e+32 on 1 and 128 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$fitted.values)) > names(z2) <- list('x','Fitted') > plot(z2,main='Scatterplot, lowess, and regression line') > lines(lowess(z2),col='red') > abline(m2) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/3r28g1321373766.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m3 <- lm(m$residuals ~ x) > summary(m3) Call: lm(formula = m$residuals ~ x) Residuals: Min 1Q Median 3Q Max -598.39 -166.18 -36.43 122.70 837.86 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.794e-15 7.690e+01 0 1 x 3.894e-18 1.895e+00 0 1 Residual standard error: 270.2 on 128 degrees of freedom Multiple R-squared: 4.868e-35, Adjusted R-squared: -0.007812 F-statistic: 6.23e-33 on 1 and 128 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$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/4sds61321373766.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 -543.47 -265.56 -64.85 251.66 1185.75 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.344e+03 3.412e+01 39.38 <2e-16 *** m$residuals 8.305e-17 1.273e-01 0.00 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 389.1 on 128 degrees of freedom Multiple R-squared: 4.242e-31, Adjusted R-squared: -0.007812 F-statistic: 5.43e-29 on 1 and 128 DF, p-value: 1 > z4 <- as.data.frame(cbind(m$residuals,m$fitted.values)) > names(z4) <- list('Residuals','Fitted') > plot(z4,main='Scatterplot, lowess, and regression line') > lines(lowess(z4),col='red') > abline(m4) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/54lha1321373766.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$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 -505.11 -162.32 -47.04 130.60 805.93 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.97007 23.63587 0.083 0.934 Residuals -0.11368 0.08786 -1.294 0.198 Residual standard error: 268.5 on 127 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.01301, Adjusted R-squared: 0.00524 F-statistic: 1.674 on 1 and 127 DF, p-value: 0.198 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/6bwd61321373766.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/7txsj1321373766.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > if (par1 > 0) + { + densityplot(~m$residuals,col='black',main=paste('Density Plot bw = ',par1),bw=par1) + } else { + densityplot(~m$residuals,col='black',main='Density Plot') + } > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/8k6fx1321373766.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/91bfc1321373766.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/10nr1e1321373766.tab") > > try(system("convert tmp/1dvvh1321373766.ps tmp/1dvvh1321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/2acbp1321373766.ps tmp/2acbp1321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/3r28g1321373766.ps tmp/3r28g1321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/4sds61321373766.ps tmp/4sds61321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/54lha1321373766.ps tmp/54lha1321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/6bwd61321373766.ps tmp/6bwd61321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/7txsj1321373766.ps tmp/7txsj1321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/8k6fx1321373766.ps tmp/8k6fx1321373766.png",intern=TRUE)) character(0) > try(system("convert tmp/91bfc1321373766.ps tmp/91bfc1321373766.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.604 0.440 3.766