Hi,
I wonder if anyone knows how to control color and darkness of the
background grid generated by ' type = c("g", "p") '
in a lattice plot
(e.g., in xyplot). The documentation does not seem to offer a way to
change them.
Thanks a lot!
Wen
On Apr 8, 2010, at 11:07 PM, Wen Huang wrote:> Hi, > > I wonder if anyone knows how to control color and darkness of the > background grid generated by ' type = c("g", "p") ' in a lattice > plot (e.g., in xyplot). The documentation does not seem to offer a > way to change them. >I wonder. Here's what I see based on the documentation ?panel.grid # has col.line as one of 6 arguments ... so ... # with the example in ?xyplot ... # ------------- EE <- equal.count(ethanol$E, number=9, overlap=1/4) ## Constructing panel functions on the fly; prepanel xyplot(NOx ~ C | EE, data = ethanol, prepanel = function(x, y) prepanel.loess(x, y, span = 1), xlab = "Compression Ratio", ylab = "NOx (micrograms/J)", panel = function(x, y) { panel.grid(h=-1, v= 2, col.line="red", lty=3) panel.xyplot(x, y) panel.loess(x,y, span=1) }, aspect = "xy") Seems to alter "them", at least to the minimal extent of the offered explanation. -- David -- David Winsemius, MD West Hartford, CT
The default settings come from
trellis.par.get("reference.line")
On 9 April 2010 13:07, Wen Huang <whuang.ustc at gmail.com>
wrote:> Hi,
>
> I wonder if anyone knows how to control color and darkness of the
background
> grid generated by ' type = c("g", "p") ' in a
lattice plot (e.g., in
> xyplot). The documentation does not seem to offer a way to change them.
>
> Thanks a lot!
>
> Wen
>
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>
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