R version 2.8.0 (2008-10-20)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> y <- c(7,5.5,3,6,4,5,5,5.5,8,5.5,6.5,6,4,6,5.5,2,4.5,4,4,7,7.5,8,4.5,7,5.5,4,4.5,4.5,4.5,4.5,5,8,5.5,4,4.5,8,5.5,8,6,6,7,4.5,5,4.5,5,6,7,7,5,7,8,4.5,5,3,4,6.5,5,4,3.5,7.5,4.5,5,6,6.5,5,5.5,4,4.5,6.5,5.5,4,4.5,4.5,7.5,4.5,5,7,6,6,5.5,7,3,6,4,7,5.5,5,7,6,5,7,2.5,5.5,5,4.5,5,8,6.5,4.5,5,5,3.5,4.5,4,7,7,4,4.5,7,7,4,4,4,3.5,3,4,3,5.5,7,5.5,5.5,5.5,7,4,10,5.5,4,5.5,5,7,5.5,4.5,4.5,4,5,6.5,6.5,6,4,6.5,7,6,7,7.5,6.5,8,4.5,4.5,4.5,4,3.5,8,5.5,4.5,5.5,4.5,7,6.5,8)
> x <- c(8.7,7.7,8.3,7.7,6.3,9.7,8.3,7.0,7.3,8.3,8.0,6.0,7.3,5.0,7.3,9.3,6.7,4.0,8.0,6.7,7.0,6.7,7.0,7.7,9.3,8.0,8.0,8.0,7.7,7.7,9.7,8.0,6.0,8.3,7.0,8.7,7.3,7.3,7.3,7.7,10.0,7.7,5.7,7.7,7.7,8.3,8.0,8.0,7.7,7.0,8.0,8.0,9.3,5.3,6.7,9.7,9.0,7.3,9.3,5.3,8.3,8.0,9.3,8.0,7.7,10.0,8.0,7.0,8.3,8.3,7.3,7.7,8.7,7.7,8.3,7.0,8.3,8.0,9.7,7.3,9.0,8.7,7.3,8.0,9.0,8.0,8.0,9.7,7.3,7.0,8.0,8.0,7.7,6.7,9.0,8.7,8.3,7.0,7.0,6.3,7.0,7.0,5.3,7.3,9.7,5.0,5.7,5.0,7.0,7.0,6.3,8.0,6.7,5.7,7.7,8.0,4.7,6.3,8.0,4.3,7.3,5.3,6.3,8.3,8.3,7.7,8.0,8.7,8.7,8.3,6.0,7.0,8.7,7.7,7.7,7.3,6.7,4.3,8.0,5.0,4.7,7.3,3.3,8.0,7.3,8.0,6.3,6.7,4.3,6.7,7.3,8.0,9.7,4.0,6.7,7.0,8.0,7.3,6.7)
> 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 
-3.5840 -0.9877 -0.1136  1.0752  4.4901 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)    
(Intercept)  4.89529    0.64561   7.582 2.78e-12 ***
x            0.07405    0.08543   0.867    0.387    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 

Residual standard error: 1.401 on 157 degrees of freedom
Multiple R-squared: 0.004763,	Adjusted R-squared: -0.001576 
F-statistic: 0.7513 on 1 and 157 DF,  p-value: 0.3874 

> postscript(file="/var/www/html/freestat/rcomp/tmp/1edtp1289749535.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/html/freestat/rcomp/tmp/2edtp1289749535.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 
-5.565e-16 -2.652e-16 -3.175e-17  3.285e-16  2.487e-15 

Coefficients:
             Estimate Std. Error   t value Pr(>|t|)    
(Intercept) 4.895e+00  1.718e-16 2.849e+16   <2e-16 ***
x           7.405e-02  2.274e-17 3.256e+15   <2e-16 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 

Residual standard error: 3.73e-16 on 157 degrees of freedom
Multiple R-squared:     1,	Adjusted R-squared:     1 
F-statistic: 1.06e+31 on 1 and 157 DF,  p-value: < 2.2e-16 

> z2 <- as.data.frame(cbind(x,m$fitted.values))
> names(z2) <- list('x','Fitted')
> plot(z2,main='Scatterplot, lowess, and regression line')
> lines(lowess(z2),col='red')
> abline(m2)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/3pnas1289749535.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> m3 <- lm(m$residuals ~ x)
> summary(m3)

Call:
lm(formula = m$residuals ~ x)

Residuals:
    Min      1Q  Median      3Q     Max 
-3.5840 -0.9877 -0.1136  1.0752  4.4901 

Coefficients:
             Estimate Std. Error  t value Pr(>|t|)
(Intercept) 2.344e-17  6.456e-01 3.63e-17        1
x           4.032e-19  8.543e-02 4.72e-18        1

Residual standard error: 1.401 on 157 degrees of freedom
Multiple R-squared: 1.865e-33,	Adjusted R-squared: -0.006369 
F-statistic: 2.929e-31 on 1 and 157 DF,  p-value: 1 

> z3 <- as.data.frame(cbind(x,m$residuals))
> names(z3) <- list('x','Residuals')
> plot(z3,main='Scatterplot, lowess, and regression line')
> lines(lowess(z3),col='red')
> abline(m3)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/4iw9d1289749535.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> m4 <- lm(m$fitted.values ~ m$residuals)
> summary(m4)

Call:
lm(formula = m$fitted.values ~ m$residuals)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.30688 -0.03288  0.01896  0.05228  0.18928 

Coefficients:
              Estimate Std. Error   t value Pr(>|t|)    
(Intercept)  5.447e+00  7.688e-03     708.4   <2e-16 ***
m$residuals -2.784e-17  5.521e-03 -5.04e-15        1    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 

Residual standard error: 0.09694 on 157 degrees of freedom
Multiple R-squared: 2.139e-30,	Adjusted R-squared: -0.006369 
F-statistic: 3.358e-28 on 1 and 157 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/html/freestat/rcomp/tmp/5iw9d1289749535.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 
-3.5825 -1.0150 -0.2578  1.0264  4.6433 

Coefficients:
             Estimate Std. Error t value Pr(>|t|)
(Intercept) -0.007652   0.110950  -0.069    0.945
Residuals    0.096389   0.080316   1.200    0.232

Residual standard error: 1.395 on 156 degrees of freedom
  (2 observations deleted due to missingness)
Multiple R-squared: 0.009148,	Adjusted R-squared: 0.002797 
F-statistic:  1.44 on 1 and 156 DF,  p-value: 0.2319 

> abline(m5)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/6tn8g1289749535.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> hist(m$residuals,main='Residual Histogram',xlab='Residuals')
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/7lw8j1289749535.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> if (par1 > 0)
+ {
+ densityplot(~m$residuals,col='black',main=paste('Density Plot   bw = ',par1),bw=par1)
+ } else {
+ densityplot(~m$residuals,col='black',main='Density Plot')
+ }
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/8lw8j1289749535.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> acf(m$residuals,main='Residual Autocorrelation Function')
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/9lw8j1289749535.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/html/freestat/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/www/html/freestat/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/html/freestat/rcomp/tmp/10axmd1289749535.tab") 
> 
> try(system("convert tmp/1edtp1289749535.ps tmp/1edtp1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/2edtp1289749535.ps tmp/2edtp1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/3pnas1289749535.ps tmp/3pnas1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/4iw9d1289749535.ps tmp/4iw9d1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/5iw9d1289749535.ps tmp/5iw9d1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/6tn8g1289749535.ps tmp/6tn8g1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/7lw8j1289749535.ps tmp/7lw8j1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/8lw8j1289749535.ps tmp/8lw8j1289749535.png",intern=TRUE))
character(0)
> try(system("convert tmp/9lw8j1289749535.ps tmp/9lw8j1289749535.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.919   2.156   3.203