Thanks Deepayan,

I actually looked at the upper section but couldn't not spot these 
arguments. I thought they were optional arguments in '...'. I will try 
to open my eyes next time ;)

Deepayan Sarkar a écrit :
> On 8/13/07, Sébastien <pomchip@free.fr> wrote:
>   
>> Dear R-users,
>>
>> The help does not give much details on the use of the arguments 'from'
>> and 'to' in the panel.abline function.
>>     
>
> Not surprising, since panel.abline doesn't actually have arguments
> called 'from' and 'to'.
>
>   
>> I have looked in the archives but
>> did not find how to implement them. My different tries failed miserably.
>> E.g, the following code doesn't seem to work, in a sense that the line
>> is not limited to the (0,10) range.
>> Do these arguments really apply to panel.abline?
>>     
>
> No, they do not. It is common to have many functions documented in one
> help page, and you need to look at the usage section (near the top) to
> figure out which arguments are releant for which functions. The help
> page has:
>
>
> Usage:
>
>      panel.abline(a = NULL, b = 0,
>                   h = NULL, v = NULL,
>                   reg = NULL, coef = NULL,
>                   col, col.line, lty, lwd, type,
>                   ...)
>
>      panel.curve(expr, from, to, n = 101,
>                  curve.type = "l",
>                  col, lty, lwd, type,
>                  ...)
>
> etc. If you want to limit the range, use panel.curve, e.g.
>
>   panel.curve(0 + 1 * x,from=0,to=10)
>
> -Deepayan
>
>
>   
>> If so, how should they
>> be specified?
>>
>> xy<-data.frame(x<-0.1:10,y<-0.1:10)
>> xyplot(y~x,data=xy,
>>              panel = function(x, y, ...){
>>        panel.abline(a=0,b=1,from=0,to=10)
>>        panel.xyplot(x,y)
>>        })
>>
>> Thanks you in advance for your help.
>>
>> Sebastien
>>
>> ______________________________________________
>> R-help@stat.math.ethz.ch mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>     

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