Pieter reports that a further suggestion of using, instead,
axis.POSIXct(1,x) was helpful.
--
David Winsemius
On Feb 28, 2009, at 2:53 PM, David Winsemius wrote:
The filled.contour help page offers a somewhat more extensive
example for using plot.axes than you have attempted:
plot.axes = { axis(1, seq(100, 800, by = 100)) axis(2, seq(100, 600,
by = 100)) },
And looking at the help page for axis() shows that the default
setting for at is NULL, so it is "correctly formatted" as called,
and you instead need to tell axis where to place the ticks and
labels. This minor hack of the filled.contour example using the
pretty function may offer ideas that you can apply to your code
(whatever it might be.)
x <- 10*1:nrow(volcano)
y <- 10*1:ncol(volcano)
filled.contour(x, y, volcano, color = terrain.colors,
plot.title = title(main = "The Topography of Maunga Whau",
xlab = "Meters North", ylab = "Meters West"),
plot.axes = { axis(1, pretty(x,min=0))
axis(2, seq(100, 600, by = 100)) },
key.title = title(main="Height\n(meters)"),
key.axes = axis(4, seq(90, 190, by = 10)))# maybe also asp=1
mtext(paste("filled.contour(.) from", R.version.string),
side = 1, line = 4, adj = 1, cex = .66)
# Bottom line ... read the axis help page and the links from it.
--
David Winsemius
On Feb 28, 2009, at 2:32 PM, Pieter Beck wrote:
Dear all,
I am using filled.contour and my x-axis consists of a vector of
dates,
formatted using as.POSIXct.
When I assign this vector to x in filled.contour, the x-axis in the
plot is
correctly formatted as dates.
However, when I use plot.axes=axis(1) in filled.contour the x-axis
is not
correctly formatted. I need to opt for the latter because I want to
add
additional lines and points to the graph using plot.axes.
Does anyone have a suggestion of how to make sure the x-axis is
correctly
formatted as time/dates when I explicitly plot it using plot.axes?
Many thanks in advance,
Pieter Beck
[[alternative HTML version deleted]]
______________________________________________
R-help@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.
______________________________________________
R-help@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.
______________________________________________
R-help@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.
