[R] Data formatting for matplot

[Henrique Dallazuanna]

Tim,

With Gabor examples, I understand this,

You can get a similar graph with  plot:

with(mydat, plot(x, y, col = id))

On Mon, Sep 28, 2009 at 3:01 AM, Tim Clark <mudiver1200 at yahoo.com> wrote:
> Henrique,
>
> Thanks for the suggestion.  I think I may not understand matplot() because the graph did not come out like it should have.  Gabor suggested:
>
> library(lattice)
> xyplot(y ~ x, mydat, groups = id)
>
> Which gave what I was looking for.  Is there a way to get matplot() to give the same graph?  I don't have to use matplot(), but would like to understand its use.
>
> Thanks,
>
> Tim
>
>
> Tim Clark
> Department of Zoology
> University of Hawaii
>
>
> --- On Sun, 9/27/09, Henrique Dallazuanna <wwwhsd at gmail.com> wrote:
>
>> From: Henrique Dallazuanna <wwwhsd at gmail.com>
>> Subject: Re: [R] Data formatting for matplot
>> To: "Tim Clark" <mudiver1200 at yahoo.com>
>> Cc: r-help at r-project.org
>> Date: Sunday, September 27, 2009, 4:47 PM
>> You can try this:
>>
>> matplot(do.call(cbind, split.dat))
>>
>> On Sun, Sep 27, 2009 at 11:42 PM, Tim Clark <mudiver1200 at yahoo.com>
>> wrote:
>> > Dear List,
>> >
>> > I am wanting to produce a multiple line plot, and know
>> I can do it with matplot but can't get my data in the format
>> I need.  I have a dataframe with three columns; individuals
>> ID, x, and y.  I have tried split() but it gives me a list
>> of matrices, which is closer but not quite what I need.
>>  For example:
>> >
>> > id<-rep(seq(1,5,1),length.out=100)
>> > x<-rnorm(100,5,1)
>> > y<-rnorm(100,20,5)
>> >
>> > mydat<-data.frame(id,x,y)
>> > split.dat<-split(mydat[,2:3],mydat[,1])
>> >
>> > I would appreciate your help in either how to get this
>> into a format acceptable to matplot or other options for
>> creating a multiple line plot.
>> >
>> > Thanks,
>> >
>> > Tim
>> >
>> >
>> >
>> > Tim Clark
>> > Department of Zoology
>> > University of Hawaii
>> >
>> > ______________________________________________
>> > R-help at r-project.org
>> 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.
>> >
>>
>>
>>
>> --
>> Henrique Dallazuanna
>> Curitiba-Paraná-Brasil
>> 25° 25' 40" S 49° 16' 22" O
>>
>
>
>
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O