> this is the command i made for a normal distribution, but when i try to
plot
> the histograms, i dont know why the bars don't stick on the line...
>
> nsamples<-1000
> sampsize<-15
> Samples<-matrix(rnorm(nsamples*sampsize,0,1),nrow=nsamples)
> a<-apply(Samples,1,var)
> NC14<-a*14
> x<-0:40
> plot(x,dchisq(x,14),type='h')
> hist(NC14,freq=F,add=T)
Set the histogram bins to match the plot. Change the last line of your
code to, e.g.
hist(NC14,freq=F,add=T, breaks=x, border="transparent", col="#dddddddd")
Note that the histogram contains sample values, while the plot shows a
theoretical distribution, so they won't match exactly.
Regards,
Richie.
Mathematical Sciences Unit
HSL
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