[R] Simple R graph question

[Duncan Mackay]

At 07:12 09/07/2011, you wrote:
>Dear jholtman,
>
>Thanks for the reply & sorry for the been unclear before.
>
>My desire graph is to have multiply plots showing Y1,Y2,Y3 with the same X,
>were each plot is month-year (e.g., 5-2001, 6-2001, etc). It ill be great if
>each Y can have a different line and point style.
>
>The Lattice graphic
>(http://addictedtor.free.fr/graphiques/graphcode.php?graph=48) looks similar
>to what I want but the script looks complex for me.
>
>Thanks in advance.
>
>
>--
>View this message in context: 
>http://r.789695.n4.nabble.com/Simple-R-graph-question-tp3653493p3655142.html
>Sent from the R help mailing list archive at Nabble.com.
>
>______________________________________________
>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.

Hi ashz

Try the following simplification which incorporates the par.settings 
into xyplot

xyplot(height ~ dist | geology, data = tmp,
        groups = species,
        layout = c(2,2),
        auto.key = list(columns = 2, lines = TRUE),
        par.settings = list(superpose.symbol = list(pch = 1:6, cex = 1.2),
                            superpose.line = list(col = "grey", lty = 1)),
        panel = function(x, y, type, ...) {
          panel.superpose(x, y, type="l", ...)
          panel.superpose(x, y, type="p",...)
        },
)

which can be further simplified to :
xyplot(height ~ dist | geology, data = tmp,
        groups = species,
        layout = c(2,2),
        auto.key = list(columns = 2, lines = TRUE),
        par.settings = list(superpose.symbol = list(pch = 1:6, cex = 1.2),
                            superpose.line = list(col = "grey", lty = 1)),
        panel = function(x, y, type, ...) {
          panel.superpose(x, y, type="b", ...)
        },
)

or an alternative

xyplot(height ~ dist | geology, data = tmp,
        groups = species,
        layout = c(2,2),
        auto.key = list(columns = 2, lines = TRUE),
        par.settings = list(superpose.symbol = list(pch = 1:6, cex = 1.2),
                            superpose.line = list(col = "grey", lty = 1)),
        panel = function(x, y, type, ...) {
          panel.superpose(x, y, type="o", ...)
        },
)

study
?xyplot

Regards

Duncan Mackay

Duncan Mackay
Department of Agronomy and Soil Science
University of New England
ARMIDALE NSW 2351
Email: home mackay at northnet.com.au