James,
Your problem with bwplot is with your scales definition.
bwplot places the plots at locations 1:24; you can then
supply arbitrary labels for these locations. Try changing
the following:
xlim = c(-1, 24) to xlim = c(0, 25)
at = hrs to at = hrs + 1 (or redefine hrs)
As to needing to use 'gdf$': this makes no sense to me.
What error occurs if you leave that off?
-Peter Ehlers
On 2010-04-17 13:00, James Rome wrote:
David,
I did post a solved message:
hrs = seq(0, 23, 1)
hrlabs = as.character(seq(0,23,1))
g = xyplot(gdf$tt~gdf$OnHour |gdf$Runway, data=gdf, ylab="Taxi
time (min)", main=title, xlab="Hour of day",
xlim=c(-1, 24), scales=list(x = list(rot=90, cex=.6,
alternating=c(3,3,3,3),
at=hrs, labels=hrlabs
)),
panel=function(x, ...) {
panel.grid(h = -1, v = 24)
panel.bwplot(x, horizontal=FALSE, col="black",...)
}
)
print(g)
created the plot I sent you (withxyplot.png), with the 0 data plotted on
zero, and the 3AM data blank.
I arrived at this by doing xyplot and observing that the points were
plotted correctly. Then I added panel.bwplot() and it was still correct,
so I removed panel.xyplot() and it worked. But replacing the main call
to xyplot with bwplot gets it wrong.
For example, I did it with
hrs = seq(0, 23, 1)
hrlabs = as.character(seq(0,23,1))
g = bwplot(gdf$tt~gdf$OnHFact |gdf$Runway, data=gdf, ylab="Taxi
time (min)", main=title, xlab="Hour of day",
xlim=c(-1, 24), horizontal=FALSE, drop.unused.levels=FALSE,
scales=list(x = list(rot=90, cex=.6, alternating=c(3,3,3,3),
at=hrs, labels=hrlabs
)),
panel=function(x, ...) {
panel.grid(h = -1, v = 24)
panel.bwplot(x,
col="black",...)
}
)
print(g)
and get the attached withbwplotAndFactors.png, which is wrong. It was
also wrong with OnHour, and with drop.unused.levels=TRUE.
And I did indeed get errors if I left the gdf$ out of the formulas,
because it is defined in many data frames.
Thanks,
Jim
On 4/17/2010 12:35 PM, David Winsemius wrote:
On Apr 17, 2010, at 12:29 PM, James Rome wrote:
It has all the data needed, and only that data, which I got dinged on
before.
I was seeing a different number of points in some panels in your plot
compared to my plot. I have not downloaded the most recent dataset, and
from what you are saying here should I assume it had not changed? But
your plot had a title that could not have been created by the posted
code , so i just don't know where you are with all of this. Are you
going to post a SOLVED message when it is finally answered?
______________________________________________
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--
Peter Ehlers
University of Calgary
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
