Displaying 20 results from an estimated 436 matches for "xyplot".

2008 Nov 10

4

Labeling points with xYplot

Hello R-Users,
I am trying to label points on an xYplot. I can label the points, but
then I lose the error bars. I suspect that I should be using
panel.xYplot rather than panel.xyplot, but that didn't work either...
Can anybody help me out? Example code is below. First xYplot has error
bars, second tries to label the points and the bars disa...

2010 Mar 05

4

conditioning variable in panel.xyplot?

I wish to create a multipanel plot (map) from several datasets ("d" and
"q" in the example below). I can condition the main xyplot statement on
the "site" variable, but I don't know how to pass a conditioning variable
to panel.xyplot plot so that the x-y coordinates from dataset q are only
plotted at the appropriate site.
library(lattice)
d <- data.frame(site = c(rep("A",12), rep("B"...

2006 Dec 28

2

lattice xyplot: plot multiple lines with different colors

Hi everyone,
I am using the lattice package to plot some simulation results, by using
the function xyplot(). However, I cannot find a way to plot multiple
lines within the same xyplot and to have each of the lines be drawn in a
different color.
This is what I am currently doing:
xyplot(a + b + c ~ x, my_data, panel = panel.lines)
but, of course, all lines are drawn in the same color.
What I woul...

2011 Jul 27

2

Creating a flat legend 'grob' for lattice xyplot

Hi,
I want my xyplot legend to be flat, not tall, and there seems to be no way
for xyplot's auto.key and key elements to do this: I tried many, many
permutations of what I could find in the archives and reading the
documentation. If there there's a way to make it flat, please tell me what
the magic incantation...

2010 Feb 14

2

xyplot, overlay two variables on one plot with group factors

All
I want to overlay two variables on the same plot following their appropriate
grouping. I have attempted to use subscripting in panel with panel.xyplot,
but I can't get the grouping to follow into the panel...here is an
example...
dat<-data.frame(
y= log(1:10),
y2=10:19,
x=1:10,
grp = as.factor(1)
)
dat2<-data.frame(
y= log(10:19),
y2= 20:29,
x=1:10,
grp = as.factor(c(2))
)
dat<-rbind(dat, dat2)
# Here I plot both response var...

2005 Jun 22

1

How to use expression in label with xYplot

...nom),CS137=seq(nom),TE129m=seq(nom))
if I use this function to create the labels :
lab <- function(i)
as.expression(bquote(italic(phantom(0)^{.(num[i])}*.(nom[i]))))
label(df$GE78) <- lab(1)
label(df$CS137) <- lab(2)
label(df$TE129m) <- lab(3)
all works fine when I use text and xyplot :
plot(1:10)
text(6,6,labels=label(df$CS137))
xyplot(CS137~TE129m,data=df,xlab=label(df$CS137),ylab=label(df$TE129m))
but xYplot doesn't work fine
xYplot(CS137~TE129m,data=df)
I have the message :
Error in parse(file, n, text, prompt) : parse error
if I change the lab function
lab <-...

2006 Jun 08

1

panel.abline and xyplot

Dear All,
I am wondering on how to use the abline.xyplot with xyplot such that I will have different vertical lines for each panel. More sepcifically, suppose that the xyplot generates 4 panels defined by the combination of two binary variables: X_1 and X_2. i.e.
xyplot(Y ~ Z | X_1*X_2, data = df)
I want something like:
abline(v = 5)...

2011 Jan 31

1

align xyplot

Dear R users,
I'm using xyplot to obtain a graph about a correlation x~y for different years (a categoric variable).
The program dispose automatically the graphs in this way:
2010
2007 2008 2009
2004 2005 2006
2001 2002 2003
1998 1999 2000
Which code should I use to obtain this sequance of graphs?
1998 1999 2000 2001 2002 2...

2007 Oct 09

2

lattice/xyplot: horizontal y-axis labels with scales(relation="free")

I would like to create an xyplot with varying y-axis limits and horizontal labels at the y-axis tickmarks.
The following does not seem to work, although I think it should, going by the documentation for par.
R version 2.5.1, Windows XP Prof.
Thanks for a clue.
Andreas Krause
library(lattice)
# axis labels for y-axis are horiz...

2010 Sep 03

3

define colors for groups in lattice xyplot

...uot;A","B","C"),each=5),times=3
)),
location= factor(rep (paste("LOC",1:3),each=15)),
color = rep (rep (c("red","green","blue"),each=5),times=3
),
result = rnorm (45))
library(lattice)
xyplot( result ~ time | location, data=dataset,groups=genotype,pch=19,
type="b")
xyplot( result ~ time | location, data=dataset,groups=genotype,
fill.color = dataset$color,
panel = function(x, y,fill.color,...,subscripts) {
fill = fill.co...

2009 Feb 20

4

adding a reference line to an xyplot

Hi,
I want to add a dashed vertical line to a number of xyplots.
Here is a simple script of the type of plot I have but then I want to add a
reference line to 1995 on each of the panels. I have tried panel.abline and
other suggestions on the forum but can't get it to work.
plot<-rep(letters[1:3],each=10)
year<-rep(1991:2000,times=3)
matter<-rep...

2008 Jul 02

1

auto.key in xyplot in conjunction with panel.text

All,
I can't seem to get auto.key to work properly in an xyplot that is employing
panel.text. Specifically, I often change the default grouping colors then
use auto.key accordingly, but for some reason the same functionality isn't
working for this different type of plot. Any help much appreciated.
Cheers,
David
library("lattice")
dat = dat...

2006 Dec 14

2

xyplot: discrete points + continuous curve per panel

I have a number of x, y observations (Time, Conc) for a number of Subjects
(with subject number Subj) and Doses. I can plot the individual points with
xyplot fine:
xyplot(Conc ~ Time | Subj,
Groups=Dose,
data=myData,
panel = function(x,y) {
panel.xyplot(x, y)
panel.superpose(???) # Needs more here
}
)
I also like to plot on each panel (there is one Subj per panel) a continuous
curve...

2008 Aug 08

1

Lattice: regression lines within grouped xyplot panels

Dear community,
I am looking for a possibility to draw 'regression lines' instead of
'smooth' lines in grouped xyplots. The following code should give you a
small example of the data structure.
library(lattice)
data(Gcsemv, package = "mlmRev")
# Creates artificial grouping variable ...
Gcsemv$Groups <-
ifelse(as.numeric(as.character(Gcsemv$school))>65000,
"Group1", "...

2010 Sep 27

1

scientific vs. fixed notation in xyplot()

Hi I am using xyplot() to plot on the log scale by using scale=list(log=T)
argument. For example:
xyplot(1:10~1:10, scales=list(log=T))
But the axis labels are printed as scientific notation (10^0.0, etc), instead of
fixed notation. How can I change that to fixed notation?
options(scipen=4) doesn't work on xyp...

2010 Nov 07

1

How do I order xyplot line points?

I have the following xyplot figure:
http://img577.imageshack.us/img577/686/filesizeresults12000000.png
The data are organized in a matrix file as follows:
Type Elements Chromosome Time
bedGz 12000000 chr1 14.240
bedGz 12000000 chr2 7.949
bedGz 12000000 chr3 5.103
bedGz 12000000 chr4 5.290...

2009 Nov 06

1

using xyplot to plot frequencies

Hi all,
First off, thank you for the overwhelming response last time. I'm still
trying to figure out the syntax of R to plot some distributions of some
frequencies. I've managed to plot histograms from the data, but I would
like to clean it up using xyplot from library(lattice). Unfortunately
I cannot find a solution to my problem.
Given a dataframe "all2", with numerical data in cols "year" and "standard"
("standard" being standardized data)
>all2
Year standard
1 2001 0.034246575
2 2001 0.0000...

2006 Jan 16

1

Legends in xyplot

Hi,
How can I add legends in the "xyplot" function, in the "lattice" library?
Here is a simulation example:
x <- runif(90)
z <- sample(1:3, 90, rep=T)
y <- rnorm(90, mean = x^2 + z, sd=1)
library(lattice)
trellis.par.set(col.whitebg())
xyplot(y ~x, groups=as.factor(z), type = c('p', 'smooth&...

2009 Mar 23

1

using xyplot

Dear R-sians!
I am trying generate a bunch of xyplots
library(lattice)
myPanel <- function(x,y,xl=range(x),yl=range(y),...) {
panel.xyplot(x,y, pch=20,col='blue',cex=0.7,xlim=xl,ylim=yl,...)
panel.abline(v=0, col='gray30',lty=2,lwd=1.5,...)
panel.loess(x,y,
span=2/3,family='gaussian',normalize=T,co...

2007 Apr 26

1

xyplot() and controlling panel.polygon()

Dear R-helpers,
How do I tell panel.polygon what greoup and panel it applies to whithin
xyplot(y ~ x | c, groups = g
panel = function(x, y, groups, ...){
panel.polygon(x = xpol[c, g], y = ypol[c, g], default.units
= 'native')
panel.xYplot(x, y, groups, ...)
llines(x = c(1, 6), y = c(-24.283333, 35.941667), lwd = 2, lty =
3, col = 4)
}
x[c, g] and y[c, g] descr...