Displaying 20 results from an estimated 3000 matches similar to: "[R] lattice: levelplot: error: min not meaningful for factor (PR#6005)"
2003 Dec 22
0
(PR#6005) Re: [R] lattice: levelplot: error: min not meaningful
Actually, this is supposed to work (and is given as an example in my DSC-2003
paper), and at some point, did. It seems this was broken as a consequence of
a careless change in panel.levelplot. The first 5 lines should have been
label.style <- match.arg(label.style)
x <- as.numeric(x[subscripts])
y <- as.numeric(y[subscripts])
minXwid <- min(diff(sort(unique(x))))
2006 Dec 08
1
lattice: defining an own function using args for "formula" and "groups"
x.fun <- function( formula, data ) dotplot( formula, data )
x.grp <- function( formula, groups, data ) dotplot( formula, groups, data )
data( barley )
> x.fun( variety ~ yield | site, data=barley )
# no problem
> dotplot( variety ~ yield | site, groups=year, data=barley )
# no problem
> x.grp( variety ~ yield | site, groups=year, data=barley )
object "year" not found
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
2004 Feb 12
2
lattice: showing panels for factor levels with no values
How to show panels for factor levels of conditioning variables
which do have no values?
E.g. there are panels for "Grand Rapids" when they have values:
data( barley )
with( barley, dotplot(variety ~ yield | year * site, layout=c(6,2) ) )
There are no panels for "Grand Rapids"
when there are no values for "Grand Rapids":
my.barley <- subset( barley, ! ( site ==
2004 Mar 10
3
converting lists got by tapply to dataframes
I have two lists:
xa <- list( X=c(1,2,3), Y=c(4,5,6), Z=c(7,8,9) )
xb <- with( barley, tapply( X=seq(1:nrow(barley)), INDEX=site
, FUN=function(z)yield[z]))
I can convert xa to a dataframe easily with:
as.data.frame(xa)
But if i try the same with xb I get:
as.data.frame(xb)
Error in as.data.frame.default(xb) :
can't coerce array into a data.frame
What
2004 Jun 11
1
lattice: cumsum and xyplot
I want to display cumulative summary functions with lattice.
First I tried to get cumulated data:
library(lattice)
data(barley)
d.cum <- with( barley, by( yield, INDICES=list(site=site,year=year), FUN=cumsum ) )
I got a list of vectors.
I tried to get a dataframe which I could use in xyplot.
But neither of the following functions led to the goal:
d.cum.df1 <-
2004 Sep 13
1
Adding ranks to a repeatedly ragged array
How can I add an extra column containing the rank
to a ragged array indexed by more than one grouping
factors?
E.g. with the barley dataset:
How can I to add an additional column ``rank''
containing the rank of the ``yield'' of
the different varieties in relation to the indices
``year'' and ``site'' to the barley dataframe?
I achieved to calculate the ranks with:
2004 Mar 04
1
lattice/grid: problem with viewports for strips with zero height
PROBLEM
# Allocating strip labels by the function strip.fun():
strip.test()
# Result: No strips: ok. No strings: NOT OK.
# The distance ``y.text=unit(6,"points")'' is ignored;
# the strings are not seen on the output.
TRIALS FOR WORKAROUNDS
strip.test( strip.lines=1 )
# Result: 2 strips: ok, but not whished. 2 strings: ok.
2004 Jan 20
1
lattice: adding text between grouped panels?
How one can add a text (e.g. the labels of an axis)
in a space between grouped panels which was created
by using the argument ``between''?
Example:
data(barley)
dotplot(variety ~ yield | site * year, data=barley,
between=list(x=c( 0, 0, 6 ))
How to add labels for the y axis in the space in the middle?
Thanks
Wolfram
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 =
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
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 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
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
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
2004 Apr 27
1
helps on levelplot
I'm a new user of levelplot, and are not familiar with the terminology
very well. Is the bar alongside the levelplot indicating color or shade
call "colorkey"? I have to adjust the size of its label, but couldn't
make it so far. This is how I did:
levelplot(z~x*y, grid, at=seq(0,1,by=0.1),
colorkey=list(labels=list(cex=2)))
But I got error message "Error in
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).
2003 Oct 28
1
'levelplot' with an option 'at'
Hi all,
I encountered a difference between versions 1.6.1 and 1.7.0 when using
levelplot with an option 'at'. Here are the specs of the two platforms
used:
> R.version
_
platform sparc-sun-solaris2.8
arch sparc
os solaris2.8
system sparc, solaris2.8
status
major 1
minor 6.1
year 2002
month 11
day 01
language R
> R.version
_
platform