[R] plots

[Romain Francois]

Le 11.02.2006 19:59, Duncan Murdoch a écrit :
> Romain Francois wrote:
>> Le 11.02.2006 19:44, statistical.model at googlemail.com a écrit :
>>
>>> Hi all,
>>> I have a basic question. how can i visualize two or more density 
>>> curves on
>>> the same plot?
>>>
>>> ex:
>>> x1<-runif(100,10,80)
>>> x2<-runif(100,1,100)
>>> kernelgraf<-density(x1,kernel = "gaussian", width= 20)
>>> plot(kernelgraf, xlab="Probability", xlim=c(0,100), ylim=c(0,.1),
>>> col=rgb(0,1,0), main="")
>>> kernelgraf<-density(x2,kernel = "gaussian", width= 20)
>>> points(kernelgraf, xlab="Probability", xlim=c(0,100), ylim=c(0,.1),
>>> col=rgb(0,0,1), main="")
>>>
>>> here i am using plot + points, but i do not like the graphical 
>>> output for
>>> points.
>>>  
>>
>> You are almost there, replace your last command by :
>>
>> points(kernelgraf, type="l", col="blue")
>>
>> Romain
>>
>> PS : Maybe a function points.density setting type="l" would be a good 
>> thing ?
>
> Or maybe use
>
> lines(kernelgraf, type="l", col="blue")
>
> As I always say, when you want lines, use lines().
>
> Duncan Murdoch
You are right Duncan,

I wish there was a coffea() function in R

;-)


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| Romain FRANCOIS - http://francoisromain.free.fr               |
| Doctorant INRIA Futurs / EDF                                  |
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