R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(4.8,4.8,4.7,4.7,4.7,4.6,5.0,5.4,5.5,5.6,5.6,5.8,6.0,6.1,6.1,6.0,6.0,6.1,6.5,7.1,7.4,7.4,7.5,7.6,7.8,7.8,7.7,7.6,7.5,7.3,7.6,8.0,8.8,7.9,7.8,7.7,7.8,7.7,7.5,7.3,7.1,7.0,7.3,7.8,7.9,7.9,7.8,7.8,7.9,7.8,7.6,7.4,7.2,6.9,7.1,7.5,7.6,7.4,7.3,7.2,7.3,7.2,7.1,7.0,6.9,6.8,7.2,7.6,7.7,7.6,7.5,7.5,7.6,7.6,7.6,7.5,7.3,7.2,7.4,8.0,8.2,8.0,7.7,7.7,7.8,7.8,7.7,7.5,7.3,7.1,7.1,7.2,6.8,6.6,6.4,6.4,6.5,6.3,5.9,5.5,5.2,4.9,5.4,5.8,5.7,5.6,5.5,5.4,5.4,5.4,5.5,5.8,5.7,5.4,5.6,5.8,6.2,6.8,6.7,6.7,6.4,6.3,6.3,6.4,6.3,6.0,6.3,6.3,6.6,7.5,7.8,7.9,7.8,7.6,7.5,7.6,7.5,7.3,7.6,7.5,7.6,7.9,7.9,8.1,8.2,8.0,7.5,6.8,6.5,6.6,7.6,8.0,8.1,7.7,7.5,7.6,7.8,7.8,7.8,7.5,7.5,7.1,7.5,7.5,7.6,7.7,7.7,7.9,8.1,8.2,8.2,8.2,7.9,7.3,6.9,6.6,6.7,6.9,7.0,7.1)
> 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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> library(MASS)
> par1 <- as.numeric(par1)
> if (par2 == '0') par2 = 'Sturges' else par2 <- as.numeric(par2)
> x <- as.ts(x) #otherwise the fitdistr function does not work properly
> r <- fitdistr(x,'normal')
> r
      mean          sd    
  7.00277778   0.91962737 
 (0.06854498) (0.04846862)
> postscript(file="/var/www/html/rcomp/tmp/1np3l1257799316.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> myhist<-hist(x,col=par1,breaks=par2,main=main,ylab=ylab,xlab=xlab,freq=F)
> curve(1/(r$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/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/www/html/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/rcomp/tmp/2c8no1257799316.tab") 
> system("convert tmp/1np3l1257799316.ps tmp/1np3l1257799316.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.414   0.172   0.750