On Thu, Aug 28, 2008 at 3:07 AM, Giovanni Tarquinio
<[EMAIL PROTECTED]> wrote:
> Hello,
> I'm Giovanni from ROMA..
>
> I can't find a solution for the error:
>
> "error using packet 1
> the y field is not specified and it has not a default value"
> (this is my traslation from italian language)
>
> The code is:
>
> pc<-qqmath(~valori,
>distribution=function(p) qweibull(p,beta,alpha),
>prepanel = prepanel.qqmathline,
>panel = function(x, y) {
> panel.grid()
> panel.qqmathline(y, distribution = function(p)
> qweibull(p,beta,alpha))
> panel.qqmath(x, y)
> },
>layout = c( 1,1), aspect = 0.8,
>xlab = "Unit Weibull Quantile", ylab = "D"
>)
Here's a hint:
> args(panel.qqmath)
function (x, f.value = NULL, distribution = qnorm, qtype = 7,
groups = NULL, ...)
panel.qqmath() does not have a 'y' argument, which should tell you
that qqmath() does not pass a 'y' argument to its panel function.
-Deepayan
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