I believe you need to actually pass the values to your function:
pdf(x, mu, sigma, alpha, beta, rho) # Works
pdf(x) # Doesn't.
If not, please show us how you are calling pdf().
Michael
On Thu, Mar 29, 2012 at 9:25 AM, Guaramy <guar...@hotmail.com> wrote:
> Hi, I am writing a function to plot a pdf of a distribution
>
> x=seq(-4,4,length=200)
> mu = 0
> sigma = 0.01
> alpha = 17.5
> beta = 17.5
> rho = 0.1
> GNL.pdf.fn = function(x,mu,sigma,alpha,beta,rho)
> {
> y = x-rho*mu
> cf.fn = function(s){
> cplex = complex(1,0,1)
> temp1 = alpha*beta*exp(-sigma*s^2/2)
> temp2 = (alpha-cplex*s)*(beta+cplex*s)
> out = (temp1/temp2)^rho
> out
> }
> temp.fn = function(s){
> (Mod(cf.fn(s)))*cos(Arg(cf.fn(s))-s*y)
> }
>
> int.fn = function(t){sapply(t,FUN=temp.fn)}
> te =
> integrate(int.fn,lower=0,upper=Inf,rel.tol=1e-10,subdivisions=1000000)
> temp3 = ifelse(te$message == "OK",te$value/pi,NA)
> temp3
> }
> GNL.pdf.fn(x[100],mu,sigma,alpha,beta,rho)
>
> L = rep(0,length(x))
>
> pdf = function(x,mu,sigma,alpha,beta,rho)
> {
> for(i in 1:length(x))
> {
> L[i] = GNL.pdf.fn(x,mu,sigma,alpha,beta,rho)
> }
> L
> }
>
> The GNL function calculates the values of x and its working fine.
> The problem is my pdf function. The aim of that function is to store all the
> values of x in a list L and the plot the result.
> But when I call the pdf function this error keeps ocurring
>
> Error in rho * mu : 'rho' is missing
>
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Error-Variable-is-missing-tp4515418p4515418.html
> Sent from the R help mailing list archive at Nabble.com.
>
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