R help - Oct 2009 - lattice: passing multiple lty values to the key/legend

hi all,
It's not clear to me how (or if) I can pass multiple values for lty to a key
in xyplot?
I've tried:  lines=list(lty=1:3), to no avail.
Do I need to use something other than auto.key?
(Deepayan, if you're out there, I have your book and must admit the answer
isn't jumping out at me.)
thanks in advance!
Michael Folkes
 
example code:
#____________________________
 
xx<-data.frame(v1=rep(letters[1:3],rep(3,3)),v2=rep(1:3,3),v3=rep(1:3,rep(3,3)))
xyplot(v3~v2,data=xx,
  xlab='',
  group=v1,type='l', lty=1:3  ,

   auto.key=list(text = levels(as.factor(xx$v1)) , title='',
          cex.title=.75,points=F,lines = T,cex=1, x = .5, y = -0.1,corner = c(0,
0),
          between=1,columns=3,between.columns=2),
  )

 
_______________________________________________________
Michael Folkes
Salmon Stock Assessment
Canadian Dept. of Fisheries & Oceans     
Pacific Biological Station
3190 Hammond Bay Rd.
Nanaimo, B.C., Canada
V9T-6N7
Ph (250) 756-7264 Fax (250) 756-7053  Michael.Folkes@dfo-mpo.gc.ca
<mailto:Michael.Folkes@dfo-mpo.gc.ca>

	[[alternative HTML version deleted]]

Try setting lty with par.settings:

  xyplot(v3~v2,data=xx,
    xlab='',
#   group=v1,type='l', lty=1:3  ,
    groups=v1, type='l',
    par.settings = list(superpose.line = list(lty = 1:3)),
    auto.key = list(text=levels(as.factor(xx$v1)) , title='',
      cex.title=.75,points=F,lines = T,cex=1,
      x = .5, y = -0.1,corner = c(0, 0),
      between=1,columns=3,between.columns=2),
  )

and since 'v1' should be a factor in xx, you don't need the
as.factor() in auto.key.

  -Peter Ehlers

Folkes, Michael wrote:
> hi all,
> It's not clear to me how (or if) I can pass multiple values for lty to
a key in xyplot?
> I've tried:  lines=list(lty=1:3), to no avail.
> Do I need to use something other than auto.key?
> (Deepayan, if you're out there, I have your book and must admit the
answer isn't jumping out at me.)
> thanks in advance!
> Michael Folkes
>  
> example code:
> #____________________________
>  
>
xx<-data.frame(v1=rep(letters[1:3],rep(3,3)),v2=rep(1:3,3),v3=rep(1:3,rep(3,3)))
> xyplot(v3~v2,data=xx,
>   xlab='',
>   group=v1,type='l', lty=1:3  ,
> 
>    auto.key=list(text = levels(as.factor(xx$v1)) , title='',
>           cex.title=.75,points=F,lines = T,cex=1, x = .5, y = -0.1,corner =
c(0, 0),
>           between=1,columns=3,between.columns=2),
>   )
> 
>  
> _______________________________________________________
> Michael Folkes
> Salmon Stock Assessment
> Canadian Dept. of Fisheries & Oceans     
> Pacific Biological Station
> 3190 Hammond Bay Rd.
> Nanaimo, B.C., Canada
> V9T-6N7
> Ph (250) 756-7264 Fax (250) 756-7053  Michael.Folkes at dfo-mpo.gc.ca
<mailto:Michael.Folkes at dfo-mpo.gc.ca>
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> 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.
> 
>

On Thu, Oct 8, 2009 at 10:52 AM, Folkes, Michael
<Michael.Folkes at dfo-mpo.gc.ca> wrote:
> hi all,
> It's not clear to me how (or if) I can pass multiple values for lty to
a key in xyplot?
> I've tried: ?lines=list(lty=1:3), to no avail.
> Do I need to use something other than auto.key?
> (Deepayan, if you're out there, I have your book and must admit the
answer isn't jumping out at me.)
It's probably not spelled out as clearly as it could have been, but
see Section 7.1.6 (p 125).

-Deepayan
> thanks in advance!
> Michael Folkes
>
> example code:
> #____________________________
>
>
xx<-data.frame(v1=rep(letters[1:3],rep(3,3)),v2=rep(1:3,3),v3=rep(1:3,rep(3,3)))
> xyplot(v3~v2,data=xx,
> ?xlab='',
> ?group=v1,type='l', lty=1:3 ?,
>
> ? auto.key=list(text = levels(as.factor(xx$v1)) , title='',
> ? ? ? ? ?cex.title=.75,points=F,lines = T,cex=1, x = .5, y = -0.1,corner =
c(0, 0),
> ? ? ? ? ?between=1,columns=3,between.columns=2),
> ?)
>
>
> _______________________________________________________
> Michael Folkes
> Salmon Stock Assessment
> Canadian Dept. of Fisheries & Oceans
> Pacific Biological Station
> 3190 Hammond Bay Rd.
> Nanaimo, B.C., Canada
> V9T-6N7
> Ph (250) 756-7264 Fax (250) 756-7053 ?Michael.Folkes at dfo-mpo.gc.ca
<mailto:Michael.Folkes at dfo-mpo.gc.ca>
>
> ? ? ? ?[[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
>