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Type 'q()' to quit R. > y <- c(3,2.7,2.1,1.2,0.9,0.4,0.3,1.5,2,3.3,4,4,3.8,2.9,2.4,1.9,1.8,2.2,2,2.3,2.3,2.5,2.7,2.4,2.8,2.6,2.6,3.1,2.5,2.4,2.7,2.1,2.1,2.1,2.3,3,3.6,4.3,5,4.2,3.8,3.6,2.9,3,2.8,2.7,2.8,2.5,2.6,1.9,1.7,1.9,1.9,2.2,2.3,2.3,2.3,1.7,1.3,1.8) > x <- c(3,2.6,2.4,1.1,0.7,0.4,0,1.5,2,3,3.8,4.2,4,3.2,3,1.7,1.7,1.9,1.8,2,1.7,2.2,3,2.3,2.7,2.2,1.4,2.2,1.9,2,2.5,1.9,1.9,1.6,1,2,2.9,4.2,5,4,3.2,2.4,2.4,3.1,3.1,2.6,2.1,1.1,1,1.6,1.2,1.8,2.1,1.5,1.4,1.9,1.8,1.7,1.7,1) > 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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > par1 <- as.numeric(par1) > library(lattice) > z <- as.data.frame(cbind(x,y)) > m <- lm(y~x) > summary(m) Call: lm(formula = y ~ x) Residuals: Min 1Q Median 3Q Max -0.80717 -0.29251 -0.05938 0.23351 1.05592 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.73965 0.13542 5.462 1.03e-06 *** x 0.80442 0.05663 14.204 < 2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.4228 on 58 degrees of freedom Multiple R-squared: 0.7767, Adjusted R-squared: 0.7729 F-statistic: 201.7 on 1 and 58 DF, p-value: < 2.2e-16 > postscript(file="/var/wessaorg/rcomp/tmp/1ujoh1321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > plot(z,main='Scatterplot, lowess, and regression line') > lines(lowess(z),col='red') > abline(m) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/2enpj1321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m2 <- lm(m$fitted.values ~ x) > summary(m2) Call: lm(formula = m$fitted.values ~ x) Residuals: Min 1Q Median 3Q Max -3.148e-16 -1.536e-16 2.358e-17 1.118e-16 1.106e-15 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 7.397e-01 6.727e-17 1.100e+16 <2e-16 *** x 8.044e-01 2.813e-17 2.859e+16 <2e-16 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 2.1e-16 on 58 degrees of freedom Multiple R-squared: 1, Adjusted R-squared: 1 F-statistic: 8.176e+32 on 1 and 58 DF, p-value: < 2.2e-16 > z2 <- as.data.frame(cbind(x,m$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/3x47o1321563162.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 -0.80717 -0.29251 -0.05938 0.23351 1.05592 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 6.515e-18 1.354e-01 0 1 x -1.677e-18 5.663e-02 0 1 Residual standard error: 0.4228 on 58 degrees of freedom Multiple R-squared: 5.792e-34, Adjusted R-squared: -0.01724 F-statistic: 3.359e-32 on 1 and 58 DF, p-value: 1 > z3 <- as.data.frame(cbind(x,m$residuals)) > names(z3) <- list('x','Residuals') > plot(z3,main='Scatterplot, lowess, and regression line') > lines(lowess(z3),col='red') > abline(m3) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/4qia11321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > m4 <- lm(m$fitted.values ~ m$residuals) > summary(m4) Call: lm(formula = m$fitted.values ~ m$residuals) Residuals: Min 1Q Median 3Q Max -1.7604 -0.4129 -0.1515 0.4518 2.2618 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 2.500e+00 1.018e-01 24.56 <2e-16 *** m$residuals -1.018e-16 2.449e-01 0.00 1 --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.7886 on 58 degrees of freedom Multiple R-squared: 7.873e-31, Adjusted R-squared: -0.01724 F-statistic: 4.566e-29 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/592nu1321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > myr <- as.ts(m$residuals) > z5 <- as.data.frame(cbind(lag(myr,1),myr)) > names(z5) <- list('Lagged Residuals','Residuals') > plot(z5,main='Lag plot') > m5 <- lm(z5) > summary(m5) Call: lm(formula = z5) Residuals: Min 1Q Median 3Q Max -0.75274 -0.21070 -0.05589 0.16037 0.72539 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 0.005142 0.044916 0.114 0.909 Residuals 0.587987 0.107477 5.471 1.04e-06 *** --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Residual standard error: 0.345 on 57 degrees of freedom (2 observations deleted due to missingness) Multiple R-squared: 0.3443, Adjusted R-squared: 0.3328 F-statistic: 29.93 on 1 and 57 DF, p-value: 1.039e-06 > abline(m5) > grid() > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/6d05l1321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > hist(m$residuals,main='Residual Histogram',xlab='Residuals') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/74egs1321563162.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/8rsnl1321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > acf(m$residuals,main='Residual Autocorrelation Function') > dev.off() null device 1 > postscript(file="/var/wessaorg/rcomp/tmp/9bb3q1321563162.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqnorm(x) > qqline(x) > grid() > dev.off() null device 1 > > #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/wessaorg/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Simple Linear Regression',5,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'Statistics',1,TRUE) > a<-table.element(a,'Estimate',1,TRUE) > a<-table.element(a,'S.D.',1,TRUE) > a<-table.element(a,'T-STAT (H0: coeff=0)',1,TRUE) > a<-table.element(a,'P-value (two-sided)',1,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'constant term',header=TRUE) > a<-table.element(a,m$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/10ztaw1321563162.tab") > > try(system("convert tmp/1ujoh1321563162.ps tmp/1ujoh1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/2enpj1321563162.ps tmp/2enpj1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/3x47o1321563162.ps tmp/3x47o1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/4qia11321563162.ps tmp/4qia11321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/592nu1321563162.ps tmp/592nu1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/6d05l1321563162.ps tmp/6d05l1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/74egs1321563162.ps tmp/74egs1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/8rsnl1321563162.ps tmp/8rsnl1321563162.png",intern=TRUE)) character(0) > try(system("convert tmp/9bb3q1321563162.ps tmp/9bb3q1321563162.png",intern=TRUE)) character(0) > > > proc.time() user system elapsed 2.446 0.487 2.943