Displaying 20 results from an estimated 271 matches for "levelplots".
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levelplot
2010 Mar 25
4
3 levelplots and 1 colorbar
I want to create a simple plot containing three levelplots with one colorbar.
I used the "Three levelplots" code below, but the third levelplot is drawn
smaller than the first two. However, if I try the "Two levelplots" code below
it works well. Can anybody tell me how could I draw three levelplots (of the
same size) with one colorbar....
2006 Jun 13
2
levelplot and source() problems
I have been using levelplot but have had trouble calling it inside
functions - something seems to go wrong when it's not called directly from
the R command prompt. Simplest reproducible example:
$ R --vanilla
> library(lattice)
> levelplot(matrix(1:4,2,2))
- This gives a nice plot in soothing pastel colors.
Now, with a file lptest.r containing 2 lines:
library(lattice)
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 =
2006 Dec 11
3
upside down image/data
Dear R-community,
I am looking for some simple advice - I have a matrix (therefore 2 dimensional)
of global temperature.
Having read R-help I think that when I ask R to image() or levelplot() my matrix
will it actually appear upside down - I think I therefore need to use the line:
> levelplot(temperature.matrix[,ncol(output.temp):1], ........)
to get it looking like it was on the globe due
2005 Mar 30
1
help with plotting a grid on levelplot
I'm trying to plot a grid over a levelplot
print( levelplot( var1.pred~x+y,
data=saw.pred,
aspect=mapasp(saw.pred),
col.regions=terrain.colors(80),
main=main) )
using the data...
> saw.pred
x y var1.pred var1.var sort
1 5 5 3.3761200 256.3363 saw
2 15 5 3.3884142 499.5695 saw
3 25 5 3.5394769
2012 Aug 26
1
Multiple lattice levelplots from matrices
...rkey. While this appears to be relatively simple using functions, I haven't been able to find a solution using data matrices. An example of a working levelplot with just one matrix:
d <- replicate(10,rnorm(10))
levelplot(d)
I have found partial solutions using print and split to show all 4 levelplots on the same screen, but these would require me to either turn off the colorkey, or show it on every plot. Neither solution is completely satisfactory.
If I use the layout-option in levelplot, like so:
levelplot(d, layout=c(2,2))
, I get the desired layout, with one large colorkey, main and xlab/...
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
2004 Aug 31
1
add single contour line to levelplot
Hello,
I want to add a single contour line to a levelplot but can't figure out
how to do it 'on-the-fly'. When I include the last line in the code below,
I get the following error:
Error in NextMethod("[") : Argument "subscripts" is missing, with no default
Any tips on how to fix this are greatly appreciated!
Ian Jonsen
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):
2004 Feb 25
2
levelplot add line
R folks,
I can't seem to find the instructions in the help files for the lattice
package that explain how to add lines, such as with lines() or ?, to a
levelplot. I'd be grateful if someone could point me in the proper direction.
Cheers,
Jeff
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jeff Jorgensen
Center for Limnology jcjorgensen at wisc.edu
2011 Apr 06
2
Layout within levelplot from the lattice package
Hi,
I'm a novice with levelplot and need some assistance! Basically, I want a window
which contains 6 levelplots of equal size presented in 3 columns and 2 rows.
I've tried to approach it two ways. The first way leads to this question:
Is there any way to concatenate levelplots from a factor vertically as opposed
to horizontally? I'd like to pair the levelplots by factor.2 on top of each
other w...
2004 Apr 27
1
helps on levelplot
...1),
colorkey=list(labels=list(cex=2)))
But I got error message "Error in draw.colorkey(x$colorkey) : Object
"at" not found". I tried to specify "at" in colorkey too, but it didn't
help.
A second task I have to do is to add horizontal and vertical lines on
the levelplots, just like the way that ablines() works for image().
ablines doesn't work for levelplot. Any help will be much appreciated.
2009 Nov 09
1
How to change color the default in levelplot() ?
Dear R communities
May I seek your advices on how to change color the default in levelplot(), e.g. from the default of pink and light blue, to e.g. red and green ?
The levelplot function has 1 of the arguments being panel (which is actually panel.levelplot), but I am not sure where the commands to alter the color.
For example, I type:
p1<-levelplot(my.mat,colorkey=FALSE),
how could I
2013 Feb 20
1
Problem with levelplot() in a loop
Dear R users,
I am trying to print heatmaps in a loop (with a pause). Idea is to
visualize changing correlations over time and for testing I wrote this
simple (reproducible) code below.
My problem is that levelplot() does not produce any output when I run the
code (though heatmap does). Ideally I would like to use levelplot() as it
produces a neat index on the side indicating the color and the
2011 Nov 07
2
adjusting levelplot color scale to data
Hi guys,
I have a matrix with values varying from approximately -0.7 to 0.33 that I
want to create a heatmap/levelplot with.
When I execute the levelplot function for my matrix, I end up getting colors
that are adjusted to the max and min rather than around 0. In other words,
ideally I would like to have a color ramp that goes from red (negative
number), to white (0), to blue (positive);
2005 Jan 26
2
postscript() and levelplot() in a for loop
Hi,
I like to produce a series of levelplot graphs in postscript file, so I put
the trunk of codes including postscript() and levelplot() in a for loop. The
codes work fine outside the loop, but only produce empty .ps file when being
put within the loop. Is it a problem associated with postscript() or
levelplot()? How to get around the problem? Many thanks!
Yan
[[alternative HTML
2008 Oct 17
1
padding "bug" in lattice/levelplot
Hello,
I have encountered some unexpected behaviour with levelplot that may
simply be a misunderstanding on my part.
If I create a levelplot from a matrix with named columns, some
"padding" space appears at the top and bottom of the heatmap. Here is
an example, and I've used panel.fill to make the space I'm speaking of
evident (in green).
2010 May 21
3
Levelplot
Dear mailing list,
I am trying to find out, how do a levelplot without labels on the x- and y-axis.
The labels=FALSE does not work...can anyone help me?
m <- matrix(1:25, ncol=5)
levelplot(m, labels=F)
Regards,
Benedikt
2009 May 02
1
lattice levelplot axis + custom annotations
How would I set the "scales" property of a lattice levelplot, so that
I can add specific annotations at specific positions?
For example, I have a 200 x 1000 element levelplot. Along the y-axis
(along the 1000-element axis) I would like to add annotations on the
left side of the levelplot at elements 120, 300, 500, and 805, which
represent clusters of interest.
Currently I have
2003 Oct 28
1
'levelplot' with an option 'at'
...major 1
minor 6.1
year 2002
month 11
day 01
language R
> R.version
_
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 7.0
year 2003
month 04
day 16
language R
I created an easy example of two levelplots (one without an option 'at'
and one with an option 'at') which I run through version 1.6.1. The plot
are called:
version161.without_at.jpg
version161.with_at.jpg
After update to version 1.7.0, I run the same two plots and I got the
following files:
version17...