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Type 'q()' to quit R. > y <- c(0.3,2.1,2.5,2.3,2.4,3,1.7,3.5,4,3.7,3.7,3,2.7,2.5,2.2,2.9,3.1,3,2.8,2.5,1.9,1.9,1.8,2,2.6,2.5,2.5,1.6,1.4,0.8,1.1,1.3,1.2,1.3,1.1,1.3,1.2,1.6,1.7,1.5,0.9,1.5,1.4,1.6,1.7,1.4,1.8,1.7,1.4,1.2,1,1.7,2.4,2,2.1,2,1.8,2.7,2.3,1.9,2,2.3,2.8,2.4,2.3,2.7,2.7,2.9,3,2.2,2.3,2.8,2.8,2.8,2.2,2.6,2.8,2.5,2.4,2.3,1.9,1.7,2,2.1,1.7,1.8,1.8,1.8,1.3,1.3,1.3,1.2,1.4,2.2,2.9,3.1,3.5,3.6,4.4,4.1,5.1,5.8,5.9,5.4,5.5,4.8,3.2,2.7,2.1,1.9,0.6,0.7,-0.2,-1,-1.7,-0.7,-1,-0.9,0,0.3,0.8,0.8,1.9,2.1,2.5,2.7,2.4,2.4,2.9,3.1,3) > x <- c(493,481,462,457,442,439,488,521,501,485,464,460,467,460,448,443,436,431,484,510,513,503,471,471,476,475,470,461,455,456,517,525,523,519,509,512,519,517,510,509,501,507,569,580,578,565,547,555,562,561,555,544,537,543,594,611,613,611,594,595,591,589,584,573,567,569,621,629,628,612,595,597,593,590,580,574,573,573,620,626,620,588,566,557,561,549,532,526,511,499,555,565,542,527,510,514,517,508,493,490,469,478,528,534,518,506,502,516,528,533,536,537,524,536,587,597,581,564,558,575,580,575,563,552,537,545,601,604,586,564,549) > 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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > par1 <- as.numeric(par1) > library(lattice) > z <- as.data.frame(cbind(x,y)) > m <- lm(y~x) > summary(m) Call: lm(formula = y ~ x) Residuals: Min 1Q Median 3Q Max -3.5616 -0.6958 0.0264 0.6283 3.7236 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.994073 1.161247 4.301 3.33e-05 *** x -0.005336 0.002158 -2.473 0.0147 * --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.225 on 129 degrees of freedom Multiple R-squared: 0.04525, Adjusted R-squared: 0.03784 F-statistic: 6.113 on 1 and 129 DF, p-value: 0.01472 > postscript(file="/var/www/rcomp/tmp/11bqe1293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(z,main='Scatterplot, lowess, and regression line') > lines(lowess(z),col='red') > abline(m) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/21bqe1293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m2 <- lm(m$fitted.values ~ x) > summary(m2) Call: lm(formula = m$fitted.values ~ x) Residuals: Min 1Q Median 3Q Max -3.430e-16 -7.562e-17 -3.152e-17 1.553e-16 3.628e-16 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 4.994e+00 1.469e-16 3.399e+16 <2e-16 *** x -5.336e-03 2.731e-19 -1.954e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 1.55e-16 on 129 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 3.818e+32 on 1 and 129 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$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/3c37z1293481324.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 -3.5616 -0.6958 0.0264 0.6283 3.7236 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 1.723e-17 1.161e+00 0 1 x -4.608e-21 2.158e-03 0 1 Residual standard error: 1.225 on 129 degrees of freedom Multiple R-squared: 0, Adjusted R-squared: -0.007752 F-statistic: 0 on 1 and 129 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$residuals)) > names(z3) <- list('x','Residuals') > plot(z3,main='Scatterplot, lowess, and regression line') > lines(lowess(z3),col='red') > abline(m3) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/4mu721293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m4 <- lm(m$fitted.values ~ m$residuals) > summary(m4) Call: lm(formula = m$fitted.values ~ m$residuals) Residuals: Min 1Q Median 3Q Max -0.49768 -0.20684 -0.00139 0.17739 0.55894 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.135e+00 2.330e-02 91.62 <2e-16 *** m$residuals -1.642e-17 1.917e-02 0.00 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.2667 on 129 degrees of freedom Multiple R-squared: 5.373e-31, Adjusted R-squared: -0.007752 F-statistic: 6.931e-29 on 1 and 129 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/5fl651293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$residuals) > z5 <- as.data.frame(cbind(lag(myr,1),myr)) > names(z5) <- list('Lagged Residuals','Residuals') > plot(z5,main='Lag plot') > m5 <- lm(z5) > summary(m5) Call: lm(formula = z5) Residuals: Min 1Q Median 3Q Max -1.39659 -0.29539 -0.01795 0.27853 1.88572 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.02236 0.04435 0.504 0.615 Residuals 0.90140 0.03642 24.748 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.5057 on 128 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.8271, Adjusted R-squared: 0.8258 F-statistic: 612.5 on 1 and 128 DF, p-value: < 2.2e-16 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/6fl651293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/78un81293481324.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/www/rcomp/tmp/88un81293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/www/rcomp/tmp/9jm4t1293481324.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqnorm(x) > qqline(x) > grid() > dev.off() null device 1 > > #Note: the /var/www/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Simple Linear Regression',5,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'Statistics',1,TRUE) > a<-table.element(a,'Estimate',1,TRUE) > a<-table.element(a,'S.D.',1,TRUE) > a<-table.element(a,'T-STAT (H0: coeff=0)',1,TRUE) > a<-table.element(a,'P-value (two-sided)',1,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'constant term',header=TRUE) > a<-table.element(a,m$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/10fd2k1293481324.tab") > > try(system("convert tmp/11bqe1293481324.ps tmp/11bqe1293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/21bqe1293481324.ps tmp/21bqe1293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/3c37z1293481324.ps tmp/3c37z1293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/4mu721293481324.ps tmp/4mu721293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/5fl651293481324.ps tmp/5fl651293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/6fl651293481324.ps tmp/6fl651293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/78un81293481324.ps tmp/78un81293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/88un81293481324.ps tmp/88un81293481324.png",intern=TRUE)) character(0) > try(system("convert tmp/9jm4t1293481324.ps tmp/9jm4t1293481324.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.40 1.45 3.84