Displaying 20 results from an estimated 600 matches similar to: "maths characters in labels & ylab padding"
2006 Sep 07
3
graphics - joining repeated measures with a line
I would like to join repeated measures for patients across two visits using
a line. The program below uses symbols to represent each patient. Basically,
I would like to join each pair of symbols.
library(lattice)
patient <- c(1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9)
var <-
c(826,119,168,90,572,323,122,10,42,900,250,180,120,650,400,130,12,33)
visit <- c(1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2)
2006 Sep 11
1
graphics: y limit on xyplot
I would like to set the y axis limit of an xyplot using the object 'ylimit',
but receive this error:
[1] 990
Error in extend.limits(limitlist[[i]], axs = axs) :
improper length of lim
I get the same error if I use ylim.
library(lattice)
trellis.device(col = FALSE, theme = lattice.getOption("col.whitebg"))
name <- "Variable name"
symbols <-
2007 May 30
2
control axis
I have an outlier that I would still like to display, but would prefer to
shorten the axis. For example, display 0% - 40%, and 90% - 100%. Is this
possible? I am using an xyplot.
Thanks
Murray
--
Murray Pung
Statistician, Datapharm Australia Pty Ltd
0404 273 283
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2007 Oct 10
1
global object in user defined function
I need an object created in a user defined function to be accessible to
another user defined function. I am fairly certain the object is correctly
created as it prints when I use the return() function, however the 2nd
function seems unable to use it.
I am guessing objects created in functions are not globally accessible, is
this correct?
What is an appropriate way to pass the object to the
2006 Oct 26
3
Read.csv
Are there ways to load a csv file without row.names by read.csv? Thanks.
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2006 Oct 25
1
density plot text
Is there any way of adding text to a density plot? I have had a go using the
text() function but I think the error is because this function doesn't work
with densityplot().
Alternatively, I understand I can achieve pretty much the same result if I
plot a density kernel estimate using plot() (which allows text()), but I do
prefer densityplot().
Also, is it possible to specify the dimensions
2006 Nov 17
2
s.e. on interaction plots
Is it possible to add standard error bars to the means on interaction plots?
Thanks
Murray
--
Murray Pung
Statistician, Datapharm Australia Pty Ltd
0404 273 283
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2007 May 31
1
cox goodness of fit
Is there an implementation of the Cox-Snell residuals / Nelson-Aalen plot
for goodness of fit?
Or otherwise is there an appropriate Goodness of Fit diagnostic?
Thanks
Murray
--
Murray Pung
Statistician, Datapharm Australia Pty Ltd
0404 273 283
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2007 May 15
1
differentiate groups on barplot
To differentiate between groups on the barplot, I guessed that col =
colr[test$group] would have worked. How can I do this?
Many Thanks
Murray
test <-
structure(list(patient = 1:20, score = c(100, 95, 80, 75,
64, 43, 42, 40, 37, 35, 30, 29, 27, 26, 23, 22, 19,
18, 17, 16), group = c(1, 0, 1, 0, 1, 0, 1, 0, 1,
0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0)), .Names = c("patient",
2007 May 16
2
log rank test p value
How can I get the Log - Rank p value to be output?
The chi square value can be output, so I was thinking if I can also have the
degrees of freedom output I could generate the p value, but can't see how to
find df either.
> (survtest <- survdiff(Surv(time, cens) ~ group, data = surv,rho=0))
Call:
survdiff(formula = Surv(time, cens) ~ group, data = surv, rho = 0)
N Observed
2007 May 30
3
sizing and saving graphics in R
Dear R wizards,
I am seeking advice on graphics in R. Specifically, how to manipulate
the size and save a plot I have produced using the LDheatmap library.
I confess I am relatively new to graphics in R, but I would greatly
appreciate any suggestions you may have.
LDheatmap produces a coloured triangular matrix of pairwise
associations between 600 genetic markers in my dataset.
2006 Nov 27
1
x axis on sciplot
Is it possible to format the x axis, so that days are spaced
proportionately?
i.e. a larger space between 50 & 100, than 0 and 5?
Have not had any luck with axis.POSIXct().
Many thanks
Murray
try <-
structure(list(visit = structure(as.integer(c(1, 2, 3, 4, 5,
1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1,
2, 3, 4, 5)), .Label = c("Screening", "0",
2007 Jun 17
1
error bars on survival curve
I am using plot(survfit(Surv(time,status) ~...) and would like to add
error bars rather than the confidence intervals. Am I able to do this
at specified times? e.g. when time = 20 & 40.
leukemia.surv <- survfit(Surv(time, status) ~ x, data = aml)
plot(leukemia.surv, lty = 2:3,xlim = c(0,50))
#can i add error bars at times 20 & 40?
legend(100, .9, c("Maintenance", "No
2009 Jul 27
2
Superstring in text()
I'd like to paste a superstring with a number in an object.
Thanks for any help.
Murray
mycor <- cor(1:10,1:10)
plot(1:10,1:10)
text(8,2,paste(expression(R^2)," = ",mycor))
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2005 Nov 23
8
getting started, reading listing and saving data
Dear List
I am new to R and to the list and will try best as I can be clear and
concise. My apologies if anything I write contravenes the posting code
on this list. I would also like to say I have run through most of the
material on the R website before writing this email however, I am
stuck.
Here is what I want to do and what I have done
1. Read a comma seperated text file into R
I have used
2004 Jun 05
1
Crash in OSX (PR#6940)
Full_Name: Murray Pung
Version: 1.9.0
OS: OSX Mac
Submission from: (NULL) (134.148.20.33)
Date/Time: 2004-06-05 12:32:30 +1000
OS Version: 10.3.4 (Build 7H63)
Report Version: 2
Command: R.bin
Path: /Library/Frameworks/R.framework/Resources/bin/R.bin
Version: 1.9.0 (R 1.9.0)
PID: 358
Thread: 0
Exception: EXC_BAD_ACCESS (0x0001)
Codes: KERN_PROTECTION_FAILURE (0x0002) at
2005 Nov 29
1
rotated ylab with xyplot
hi all,
in R, what's the best way to have a rotated ylab in a graph plotted with
either xyplot or xYplot? I tried this but it didn't work.
xyplot(y~x,data.frame(x=1:10,y=runif(10)),ylab=list(srt=90,crt=90,rot=90,label="my label"))
more generally, how do you output a text at an angle in a lattice graph?
what would be a good reference for R lattice graphics? I need more
2003 Jul 05
1
Font size of xlab & ylab.
Hi!
How thy font size of xlab & ylab can be set?
Eryk
2010 Aug 19
0
Math symbols in ylab with vis.gam() or plot.gam()
Hi all,
Has anyone tried to plot math symbols with vis.gam() - a function that uses
(I think) plot.gam() internally? This is from the package mgcv - I am new to
gam().
For example, with the normal plot(), the expression() works fine for Math
symbols:
plot(xx, ylab=expression(paste(Delta,"H",sep=""))) # works fine
But, with vis.gam(), the same
2009 Dec 09
1
Greek symbols on "ylab=" using barchart() {Lattice}
Hi All,
I'm trying to write "ug/m3" as y-label, with greek letter "mu" replacing "u"
AND "3" going as a power.
These commands works in general:
plot.new()
text(0.5, 0.5, expression(symbol("m")))
But, I'm sure about how to do it using barchart() from "Lattice". Can anyone
help please?
Thanks,
Peng Cai
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