R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- c(30,28,38,30,22,26,25,18,11,26,25,38,44,30,40,34,47,30,31,23,36,36,30,25,39,34,31,31,33,25,33,35,42,43,30,33,13,32,36,0,28,14,17,32,30,35,20,28,28,39,34,26,39,39,33,28,4,39,18,14,29,44,21,16,28,35,28,38,23,36,32,29,25,27,36,28,23,40,23,40,28,34,33,28,34,30,33,22,38,26,35,8,24,29,20,29,45,37,33,33,25,32,29,28,28,31,52,21,24,41,33,32,19,20,31,31,32,18,23,17,20,12,17,30,31,10,13,22,42,1,9,32,11,25,36,31,0,24,13,8,13,19,18,33,40,22,38,24,8,35,43,43,14,41,38,45,31,13,28,31,40,30,16,37,30,35,32,27,20,18,31,31,21,39,41,13,32,18,39,14,7,17,0,30,37,0,5,1,16,32,24,17,11,24,22,12,19,13,17,15,16,24,15,17,18,20,16,16,18,22,8,17,18,16,23,22,13,13,16,16,20,22,17,18,17,12,7,17,14,23,17,14,15,17,21,18,18,17,17,16,15,21,16,14,15,17,15,15,10,6,22,21,1,18,17,4,10,16,16,9,16,17,7,15,14,14,18,12,16,21,19,16,1,16,10,19,12,2,14,17,19,14,11,4,16,20,12,15,16)
> par2 = '0'
> par1 = '8'
> ylab = 'density'
> xlab = 'value of data series'
> main = 'Histogram and Fitted Normal Density'
> 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    
  23.301038   10.576924 
 ( 0.622172) ( 0.439942)
> postscript(file="/var/wessaorg/rcomp/tmp/15nm51324635601.ps",horizontal=F,onefile=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$estimate[2])^2),min(x),max(x),add=T)
> dev.off()
null device 
          1 
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Parameter',1,TRUE)
> a<-table.element(a,'Estimated Value',1,TRUE)
> a<-table.element(a,'Standard Deviation',1,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'mean',header=TRUE)
> a<-table.element(a,r$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/wessaorg/rcomp/tmp/2o7em1324635601.tab") 
> 
> try(system("convert tmp/15nm51324635601.ps tmp/15nm51324635601.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.586   0.116   0.726