Christine:
You need to spend some time with an R tutorial ("An Intro to R" ships
with R, but there are many on the web) where function arguments are
explained more fully. That should go a long way to clearing up your
"stupidity."
Cheers,
Bert
Bert Gunter
"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
-- Clifford Stoll
On Mon, Sep 14, 2015 at 6:27 AM, Michael Dewey <li...@dewey.myzen.co.uk> wrote:
> Dear Christine
>
> The point of the ellipsis ... is to pass into the interior function any
> other parameters which were supplied to the exterior function. If you know
> for sure that there will never, never, never be such additional parameters
> then you can leave it out but that is a bit like not using a seat belt on
> the basis that you do not plan to have an accident.
>
>
> On 14/09/2015 10:30, Christine Lee via R-help wrote:
>>
>> Thanks, Duncan, I am confused by the function(x,y, ...) and
>> panel.xyplot(x,y,...). Is this a must to put in "..."? I knew this may be a
>> stupid question. I am sorry. Christine
>>
>>
>> Duncan Mackay <dulca...@bigpond.com> 於 2015年09月14日 (週一) 3:56 PM 寫道﹕
>>
>>
>> Hi
>>
>> As Bert has intimated there was a misspelling in panel.abline
>>
>> To get points as well you need the appropriate arguments for a panel
>> function otherwise you would only get a line.
>> You only had a function for a line in panel function so adding
>> panel.xyplot
>> will give you points as well.
>>
>>
>> xyplot(DI~Date1|Station, data=Raw,
>> groups = culr,
>> par.settings = list(strip.background = list(col = "transparent"),
>> superpose.symbol = list(cex = rep(2, 2),
>>
>> col=c("grey","black"),
>> pch = rep(16,2))),
>> type="p",
>> xlab=list("Month",cex=1.5),
>> ylab=list("Dispersion index",cex=1.5),
>> index.cond=list(c(1,2,3,4)),
>> auto.key = T,
>> layout=c(4,1),
>> panel = function(x, y, ...){
>>
>> panel.xyplot(x,y, ...)
>> panel.abline(h=1,lty=2,lwd=3)
>> }
>>
>> )
>>
>> Regards
>>
>> Duncan
>>
>> Duncan Mackay
>> Department of Agronomy and Soil Science
>> University of New England
>> Armidale NSW 2351
>> Email: home: mac...@northnet.com.au
>>
>> -----Original Message-----
>> From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Christine
>> Lee via R-help
>> Sent: Monday, 14 September 2015 13:43
>> To: r-help@r-project.org
>> Subject: [R] adding a line across plots in xy plot with panel.abline
>>
>> Dear all,
>>
>> I want to draw a line at DI=1 across all four graphs in the xy plot, I
>> have
>> used panel.abline, but I failed to do so, does any one has an idea of what
>> has went wrong?
>>
>> structure(list(Date = structure(c(6L, 7L, 2L, 4L, 13L, 17L, 5L,
>> 12L, 4L, 11L, 14L, 9L, 7L, 2L, 4L, 13L, 10L, 17L, 5L, 12L, 8L,
>> 4L, 11L, 14L, 9L, 16L, 15L, 3L, 10L, 1L, 17L, 5L, 12L, 8L, 4L,
>> 11L, 14L, 12L, 8L, 4L, 11L, 14L), .Label = c("1/10", "1/11",
>> "11/11", "12/11", "13/10", "19/9", "2/10", "2/11", "20/9", "23/9",
>> "26/11", "29/10", "29/11", "30/11", "31/10", "4/10", "6/10"), class =
>> "factor"),
>> Year = structure(c(1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L,
>> 2L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L,
>> 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
>> 2L, 2L), .Label = c("Y2002", "Y2014"), class = "factor"),
>> Station = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
>> 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
>> 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 4L, 4L,
>> 4L, 4L, 4L), .Label = c("E", "F", "H", "I"), class = "factor"),
>> DI = c(13.4, 7, 12.6, 12.6, 5.2, 2.2, 1, 1, 1.2, 0.8, 2.3,
>> 3.8, 5.4, 4.6, 5, 3.2, 3.1, 8.7, 2.1, 2.7, 4.9, 4, 2.2, 5.3,
>> 5.6, 4.8, 4, 8.6, 1.9, 2.9, 5.9, 2.6, 8.9, 4, 13.5, 15.3,
>> 12.8, 3.4, 4.7, 1.7, 0.9, 1.7), Date1 = structure(c(16697,
>> 16710, 16740, 16751, 16768, 16714, 16721, 16737, 16751, 16765,
>> 16769, 16698, 16710, 16740, 16751, 16768, 16701, 16714, 16721,
>> 16737, 16741, 16751, 16765, 16769, 16698, 16712, 16739, 16750,
>> 16701, 16709, 16714, 16721, 16737, 16741, 16751, 16765, 16769,
>> 16737, 16741, 16751, 16765, 16769), class = "Date")), .Names =
>> c("Date",
>>
>> "Year", "Station", "DI", "Date1"), row.names = c(NA, -42L), class =
>> "data.frame")
>> Raw$Date1<-as.Date(Raw$Date,"%d/%m")
>> culr<-ifelse(Raw$Year=="Y2002","Year 2002","Year 2014")
>> library(lattice)
>> xyplot(DI~Date1|Station, data=Raw,
>> groups = culr,
>> par.settings = list(strip.background = list(col = "transparent"),
>> superpose.symbol = list(cex = rep(2, 2),
>>
>> col=c("grey","black"),
>> pch = rep(16,2))),
>> type="p",
>> xlab=list("Month",cex=1.5),
>> ylab=list("Dispersion index",cex=1.5),
>> index.cond=list(c(1,2,3,4)),
>> auto.key = T,
>> layout=c(4,1),
>> panel=function(Date1,DI){
>> panel.labline(h=1,lty=2,lwd=3)
>> })
>>
>> Many thanks.
>>
>> Regards,
>> Christine
>>
>>
>>
>> ______________________________________________
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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.
>>
>>
>>
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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.
>>
>
> --
> Michael
> http://www.dewey.myzen.co.uk/home.html
>
>
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
