Displaying 20 results from an estimated 7000 matches similar to: "padding "bug" in lattice/levelplot"
2008 Nov 20
1
pdf device: rasterize portions of the plot to reduce file size
Dear list,
My favorite output format is usually pdf. I can include the graphics
in pdflatex documents and benefit from the scalable nature of vector
graphic formats.
However, I recently had to generate high-res 2D levelplot graphics as
in the example below,
N <- 100
# N <- 1000 # slow to diplay
xy <- expand.grid(x=seq(0, 10, length=N), y=seq(0, 10, length=N))
xy <- within(xy,
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
2009 May 08
1
centering axis labels in lattice
Hello,
I'm attempting to alter the location of text in my axis labels in
lattice plots and have been unsuccessful so far. For example, the
y-axis labels are always right-justified, but I would like them to be
horizontally centered.
Here's an example:
library(lattice);
# create fake dataset to plot
to.plot <- data.frame(
x = 1:5,
y = c("1\nAAA", "2\nBBB",
2009 May 05
3
Heatmap without levelplot
Hi there,
as I'm not sure to understand the coloring levelplot uses, I'm looking for
another easy way to create a heatmap like this:
library(lattice)
mat <- matrix(seq(1,5, length.out = 12), nrow = 3)
mat[1,2] <- 3.5
my.at <- seq(0.5,5.5, length.out = 6)
my.col.regions <- rainbow(5)
graph <- levelplot(t(mat[nrow(mat):1, ] ), at = my.at, col.regions =
my.col.regions)
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);
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
2009 Jan 26
2
heatmap with levelplot
Hi there,
I'd like to create a heatmap from my matrix with
a) a defined color range (lets say from yellow to red)
b) using striking colors above and below a certain threshold (above = "green",
below = "blue")
Example matrix (there should be a few outliers generated...) + simple levelplot
without outliers marked:
library(lattice)
my.mat <- matrix(rnorm(800), nrow =
2008 Sep 25
2
levelplot/heatmap question
Hello!
I have data containing a large number of probabilities (about 60) of nonzero
coefficients to predict 10 different independent variables (in 10 different
BMA models). i've arranged these probabilities in a matrix like so:
(IV1) (IV2) (IV3) ...
p(b0) p(b0) p(b0)
p(b1) p(b1) p(b1)
p(b2) p(b2) p(b2)
...
where p(b1) for independent variable 1 is p(b1 !=
2012 Feb 09
2
Lattice 3d coordinate transformation
Hello List!
I asked this before (with no solution), but maybe this time... I'm
trying to project a surface to the XY under a 3d cloud using lattice.
I can project contour lines following the code for fig 13.7 in
Deepayan Sarkar's "Lattice, Multivariate Data Visualization with R",
but it fails when I try to "color them in" using panel.levelplot.
?utilities.3d says there
2009 Sep 28
2
Levelplot without margins
Hello,
I'm not very experienced with lattice and I was wondering whether I get
get some hints from you how to create a pure heatmap (using levelplot),
without any axis, title, legend, margin at all... I just want to see the
coloured squares, nothing else.
Any suggestions?
Antje
2007 Jun 27
1
levelplot in lattice
Hi,
I'm new to lattice. So please kindly be patient with me.
I'm trying to arrange groups of levelplots into 3 rows as follows:
Row1: Probabilities as functions of x and y, and conditioned on an event factor vector factor("a","b","c")
Row2: Number of days as functions of x and y, and conditioned on, again the same event
2010 Mar 26
1
How can I make a lattice::levelplot block size uniform
Dear lattice::levelplot users,
I would like to use levelplot to plot uniformly sized blocks.
Here is an example:
require (lattice)
u = runif(10) * 10
v = runif(10) * 10
z = runif(10)
levelplot ( z ~ u + v, aspect="iso" )
The resultant figures have points (blocks) that are of variable size that
attempt to fill in the space along each u, v dimension. Is it possible to
force each point
2006 Mar 04
1
xyplot/levelplot: thickness of tickmarks
Hi,
if I use the xyplot (or levelplot) function (lattice library) with
the option axs="i", I have the problem that the tickmarks lie a bit
outside the "plot-box". Consider for example:
library(lattice)
x<-seq(0,1,by=0.01)
y<-seq(0,1,by=0.01)
xyplot(y~x,type="l",xlim=c(0,1),ylim=c(0,1),scales=list
2013 Jan 20
2
Lattice levelplot- remove unused levels per panel
Hi,
I am using levelplot, and would like remove from each panel (condition) its
unused x levels.
e.g.
Remove from panel vs=1 the cyl level=8.
data(mtcars)
levelplot(mpg~factor(cyl)*factor(gear)|factor(vs))
Thanks for your help,
Ronny
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View this message in context: http://r.789695.n4.nabble.com/Lattice-levelplot-remove-unused-levels-per-panel-tp4656087.html
Sent from the R help mailing
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
2010 Mar 31
2
lattice: how to add points to the plot generated by levelplot()?
I am using levelplot() function from pkg:lattice and I want to add some
points
to the plot generated by levelplot()
similarly as in basic R graphic sequence: plot(...); points(...),
but it does not work.
I was reading documentation for lattice, but so far without much
success.
I would very much appreciate some tips.
Best regards,
Ryszard
2008 Jan 31
1
decrease amount of ticks on y axis in lattice levelplot
Hi all,
How can I decrease the number of ticks on the y-axis in a lattice
levelplot()? I have as many ticks displayed on the y-axis as I have
columns of data (1000 columns), how can I decrease this amount of ticks,
while still properly displaying all the data?
Note that I get my data from a matrix object, in which the z-values of
the levelplot are the actual values in the matrix, whereas the
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
2009 Sep 26
1
multiple lattice, xyplot & levelplot on same page
Dear R-users,
I'd like to place an xyplot() at the top of a page and a levelplot() at the bottom of the same page, and have the x-axes be the same.
I've come close to finding a solution through Rarchive, and can produce an upside-down version of what I'd like (levelplot() on the top - see code below).
However, the following error occurs when I try and plot the xyplot() at the top:
2003 Jan 21
1
[R] proposal: lattice/levelplot: panel.catlevelplot
I suggest to add a panel function to levelplot (or perhaps
to an other 3d lattice function) which is able to translate
the z values into the size of the rectangles.
It could be used to display categorical data.
I append the proposed code and two examples:
- panel.catlevelplot()
- example1.catlevelplot.esoph()
- example2.catlevelplot.esoph()
Wolfram Fischer
#------ CODE