R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(52,55,80,45,60,34,45,68,26,70,85,54,55,40,55,50,71,55,70,55,60,65,66,55,90,55,60,35,55,26,14,45,35,65,35,60,60,60,65,45,20,50,60,48,40,55,54,40,40,34,60,30,75,24,30,80,60,46,35,60,75,54,78,20,45,60,70,35,20,60,20,50,50,75,70,20,45,20,50,55,15,26,25,30,60,40,40,50)
> par20 = ''
> par19 = ''
> par18 = ''
> par17 = ''
> par16 = ''
> par15 = ''
> par14 = ''
> par13 = ''
> par12 = ''
> par11 = ''
> par10 = ''
> par9 = ''
> par8 = ''
> par7 = ''
> par6 = ''
> par5 = ''
> par4 = ''
> par3 = ''
> par2 = ''
> par1 = '15'
> xlab = 'Grade'
> main = ' IQ/Grade'
> postscript(file="/var/wessaorg/rcomp/tmp/1d01z1385942534.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> par1 <- as.numeric(par1)
> myhist<-hist(x, breaks=par1, col=2, xlab=xlab, main=main)
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/2k5el1385942534.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> qqnorm(x)
> qqline(x, col=2)
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/3qj3b1385942534.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(density(x), xlab=xlab, main=main)
> 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,'Descriptive Statistics',3,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'mean',header=TRUE)
> a<-table.element(a,signif(mean(x), 6))
> a<-table.element(a,hyperlink('http://www.xycoon.com/arithmetic_mean.htm','formula','click to see the formula'))
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'standard deviation',header=TRUE)
> a<-table.element(a,signif(sd(x), 6))
> a<-table.element(a,hyperlink('http://www.xycoon.com/unbiased1.htm','formula','click to see the formula'))
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/4ygv81385942534.tab") 
> 
> try(system("convert tmp/1d01z1385942534.ps tmp/1d01z1385942534.png",intern=TRUE))
character(0)
> try(system("convert tmp/2k5el1385942534.ps tmp/2k5el1385942534.png",intern=TRUE))
character(0)
> try(system("convert tmp/3qj3b1385942534.ps tmp/3qj3b1385942534.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.573   0.546   3.091