Displaying 20 results from an estimated 4000 matches similar to: "levelplot add line"
2004 Feb 11
1
levelplot colorkey
Dear R'ers,
I've scanned available documentation and the web, but I can't seem to
figure out where I've gone wrong in adding numbers to scale the colorkey in
levelplot (Lattice package). For example,
levelplot(z, contour=T, labels=T, cuts=10, region=T,...
colorkey=list(T, space="bottom",
at=seq(0,2000,length=20),
2004 Mar 09
2
corARMA and ACF in nlme
Hi R-sters,
Just wondering what I might be doing wrong. I'm trying to fit a multiple
linear regression model, and being ever mindful about the possibilities of
autocorrelation in the errors (it's a time series), the errors appear to
follow an AR1 process (ar(ts(glsfit$residuals)) selected order 1). So,
when I go back and try to do the simultaneous regression and error fit with
gls,
2007 Jul 24
3
Overlaying a single contour from a new data array in levelplot
Dear R-Help community,
I am trying to overlay a single contour line over a correlation plot using
levelplot in the lattice package. These are the two arrays:
1) a correlation plot over Africa - so each grid square is a different colour
dependent on correlation - this is in an array: result_cor with dim[465,465]
2) a single contour line from a ***different data source*** - this is from data
2007 Oct 23
1
Custom colourkey spacing in levelplot, contourplot
Dear R gurus,
I have got stuck on how to customise the colorkey generated by
levelplot and contourplot, in the lattice package. This best
illustrated by an example:
library(lattice)
levelplot(volcano^20/1e45,at=c(0,0.001,0.01,0.1,1,10))
The reason for raising the volcano dataset to the 20th power is to
create a dataset with a large vertical exaggeration - this is similar
in nature to the data
2004 Jun 14
1
polygons around clusters of identically valued nodes in levelplot()
I'm looking for a way to plot lines on top of a levelplot(),
where the lines are borders between cells of different values.
The clines() function provides contours suitable for continuous
data. I am dealing with discrete values, spatial clusters of nodes
where each cluster has an integer value, and I want to plot the
borderlines between these areas.
So, in a levelplot having nodes with
2011 Nov 15
1
equal spacing of the polygons in levelplot key (lattice)
Given the example:
R> (levs <- quantile(volcano,c(0,0.1,0.5,0.9,0.99,1)))
0% 10% 50% 90% 99% 100%
94 100 124 170 189 195
R> levelplot(volcano,at=levs)
How can I make the key categorical with the size of the divisions equally spaced in the key? E.g., five equal size rectangles with labels at levs c(100,124,170,189,195)?
Apologies if this is obvious.
-A
R> version
2009 May 05
2
Lattice: use levelplot as panel for wireframe
Hi,
I want to draw a figure similar to http://dsarkar.fhcrc.org/lattice/book/images/Figure_13_07_stdBW.png
from http://lmdvr.r-forge.r-project.org/figures/figures.html (figure
13.7) . However instead of using a contour plot as a panel for the
wireframe I want to use a levelplot. Can somebody help me with this?
Thanks in advance for any help,
Kind regards,
Anton Bossenbroek
2003 Jul 24
3
R-WinEdt problems
Hello,
I've done most all the various steps outlined in a
recent posting to the mailing list archives
(and in the help files) to load and run R-WinEdt. I
can get it to run fine but I am not successful in
getting it to interface with RGui (1.6.2, not
minimized). I try to use the R-line, R-source,
R-paste buttons with no success. [All the necessary
*.edt files appear to be in the proper
2005 Apr 20
1
overlaying a contour line in a levelplot
Hello there,
I am creating a series of images using levelplot but I also want to
overlay a contour for a particular value as reference. Here is the
levelplot command for the image:
print(levelplot(d~x+y,data=t,cuts=20,scales=list(draw=F),xlab=NULL,ylab=
NULL,col.regions=heat.colors(100)[100:1]),split=c(1,1,1,1),more=T)
and then to add the contour plot (I only want a contour at level 5):
2006 Dec 22
1
heatmap with levelplot?
Hi,
How do I anchor z=0 to the white color in a levelplot so that
the color changes from cyan to magenta precisely as
z changes from negative to positive? Also is it easy to change
color scheme, say to blue/red as it's more dramatic? Is there a
better function for showing heatmap with a color bar?
Thanks in advance for any help, I've played with image,
heatmap and levelplot a little and
2006 Feb 12
1
contour lines for levelplot
Hi,
I would like to add contour lines to a (trellis/lattice-) levelplot.
Sure, there is the "contour=TRUE" argument, but this uses
"cuts=..." (which is usually chosen very high for my plots. I guess
cuts=99 is the best you can do (?)) for plotting the contour lines.
Furthermore, I do not like the numbering of the contour lines this
way. Therefore, I tried to add a
2006 May 10
4
lattice package plots
I am using the lattice packge for its levelplot and contourplot. Is it
possible to adjust the line thickness of the 'box' and tickmarks in these
plots?
Thanks for the attention,
Matt Sundling
2007 Mar 26
1
using alpha transparency for lines in levelplot
Hello, I'm having trouble with using the alpha channel for transparency
with lines with lattice levelplots.
If I use transparency via the alpha argument to rgb to overplot lines on
levelplot the transparent colour affects all of the region colours in the
plot.
Can anyone explain why the difference in region colours?
#### Warning: this code attempts to create PDF files in working
directory
2007 May 15
1
Getting default aspect ratio from lattice
How can I get the value of the aspect ratio that is used in a lattice
plot? In a levelplot for instance, the native units per cm of my x and
y axes are different, and I need to know the aspect ratio so that I can
correctly plot vectors. I know how to set the aspect in a high-level
lattice function but I can't quite figure out how to get it. I would
like call to levelplot() without printing
2005 Feb 15
1
lattice multiple plots per page
Dear R-sters,
I was wondering if anyone has encountered the following issues. I've
figured out how to get multiple levelplots [library(lattice)] on a single
plot. However, when I add text (adding axis labels for the entire four
panel plot) the text is missing when I insert the *.eps file I've created
into my LaTeX document (via MikTeX-WinEdt). And, I've just upgraded to R
2004 Aug 10
1
date axes and formats in levelplot
Hi all (and particularly Deepayan),
A while back Deepayan helped me with the query in the text below (thanks
again). Specifically it was about changing the way that dates plotted on
the axes of lattice plots.
While this works using xyplot, everything comes apart when I use
levelplot. The axis labels on the date axis are shown as the integer
representation of the date (number of seconds since
2002 Oct 10
1
contour in lattice
Hi
I'm using lattice's function levelplot but when I choose the flag
contour =TRUE I get very strange results. It looks like the contour
lines have nothing to do with the "image" plot under ...
Is there some known problem with this function ?
Regards
EJ
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2003 Sep 25
1
multiple plot layout and filled contour
Hello everybody,
Could anybody give me a hint how I can use "layout" and "filled.contour" (or "image"
plot with a color legend) together, please?
What I want to do is something like the following example (Two or more plots with a
legend for each at one page):
data(volcano)
layout(matrix(1:2, 1, 2, byrow = TRUE))
for (i in 1:2) {
filled.contour(i*volcano, color =
2010 Aug 14
1
How to add lines to lattice plot produced by rms::bplot
I have a plot produced by function bplot (package = rms) that is
really a lattice plot (class="trellis"). It is similar to this plot
produced by a very minor modification of the first example on the
bplot help page:
requiere(rms)
n <- 1000 # define sample size
set.seed(17) # so can reproduce the results
age <- rnorm(n, 50, 10)
blood.pressure <- rnorm(n, 120,
2006 Sep 13
1
forcing levelplot to use relative cuts (ie cuts for each panel)
Dear guRus,
I'm having trouble producing a levelplot with relative cuts for each
panel (my data has large differences in scales, so I want to use
quantiles for each panel).
My attempts to change the 'at' argument in panel.levelplot function
have not met with success.
Below is a toy example.
xy <- expand.grid(x = 1:3, y = 1:3)
aaa <- rbind(cbind(xy, z = 1:9, site =