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

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> x <- c(2.97,3.04,3.12,3.21,3.34,3.45,3.74,4.02,4.24,4.87,5.62,6.02,5.98,5.89,5.76,5.58,5.39,5.19,5.16,5.2,5.25,5.26,5.21,5.18,5.13,5.03,5.01,4.87,4.86,4.82,4.69,4.65,4.61,4.47,4.37,4.29,4.2,4.19,4.09,3.88,3.87,3.74,3.61,3.43,3.29,3.18,3.07,3.02,2.97,2.98,3.01,3.06,3.12,3.16,3.19,3.21,3.27,3.36,3.45,3.52,3.58,3.62,3.5,3.43,3.41,3.48,3.63,3.76,3.8,3.72,3.67,3.58,3.47,3.43,3.55,3.65,3.7,3.7,3.93,4.15,4.24)
> par2 = '0'
> par1 = '8'
> ylab = 'density'
> xlab = 'value of data series'
> main = 'Histogram and Fitted Normal Density'
> #'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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> library(MASS)
> par1 <- as.numeric(par1)
> if (par2 == '0') par2 = 'Sturges' else par2 <- as.numeric(par2)
> x <- as.ts(x) #otherwise the fitdistr function does not work properly
> r <- fitdistr(x,'normal')
> r
      mean          sd    
  4.05382716   0.85424657 
 (0.09491629) (0.06711595)
> postscript(file="/var/www/html/freestat/rcomp/tmp/1ldjd1258036000.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> myhist<-hist(x,col=par1,breaks=par2,main=main,ylab=ylab,xlab=xlab,freq=F)
> curve(1/(r$estimate[2]*sqrt(2*pi))*exp(-1/2*((x-r$estimate[1])/r$estimate[2])^2),min(x),max(x),add=T)
> 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,'Parameter',1,TRUE)
> a<-table.element(a,'Estimated Value',1,TRUE)
> a<-table.element(a,'Standard Deviation',1,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'mean',header=TRUE)
> a<-table.element(a,r$estimate[1])
> a<-table.element(a,r$sd[1])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'standard deviation',header=TRUE)
> a<-table.element(a,r$estimate[2])
> a<-table.element(a,r$sd[2])
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/www/html/freestat/rcomp/tmp/2cnzh1258036000.tab") 
> 
> system("convert tmp/1ldjd1258036000.ps tmp/1ldjd1258036000.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.581   0.224   0.661