Re: [R] Help resolving issues with generating a chi-squared density plot from scratch

2014-03-10 Thread David Winsemius
If you set range of x in [0, something ] for for a function that goes to infinity for x=0, then what do you expect? > On Mar 10, 2014, at 7:30 AM, Levi Robinson wrote: > > I wrote the code to graph a chi-squared density function, shade the > percentile, and point to the CV, but it has a few is

Re: [R] Help resolving issues with generating a chi-squared density plot from scratch

2014-03-10 Thread Rolf Turner
I am far too lazy to go through all your rather complicated code, but my basic impression is that you are re-inventing quite a few wheels. Just to get a plot of the density function you can simply do, e.g.: plot(function(x){dchisq(x,1)},0,qchisq(0.999,1)) I can't see why you are fool

[R] Help resolving issues with generating a chi-squared density plot from scratch

2014-03-09 Thread Levi Robinson
I wrote the code to graph a chi-squared density function, shade the percentile, and point to the CV, but it has a few issues I can't seem to resolve 1. It won't work at all for DF = 1 due to ylim going to infinity, but I haven't been able to resolve this still after hours of trying. 2) The y-axis