Displaying 20 results from an estimated 20000 matches similar to: "write.table error"
2005 Apr 13
3
A suggestion for predict function(s)
Maybe a useful addition to the predict functions would be to return the
values of the predictor variables. It just (unless there are problems)
requires an extra line. I have inserted an example below.
"predict.glm" <-
function (object, newdata = NULL, type = c("link", "response",
"terms"), se.fit = FALSE,
2003 Nov 04
2
help with nomogram function
I have fitted a logistic regression model
> failed.lr2$call
lrm(formula = failed ~ Age + task2 + Age:task2, data = time.long,
na.action = na.omit)
using the Design package functions and would like to generate a
nomogram from this model.
the datadist information is generated and stored in
> ddist
time.long$Age time.long$task2
Low:effect 45
2002 Feb 15
2
Reordering factor levels
I would like to define the order of the levels of a factor.
The relevel function would work but since I have 20 levels I would prefer
to declare the order explicitly. Using a smaller example
levels(oldfactor)
"b1" "b2" "r1" "r2"
nufactor <- order(oldfactor,order=c("b1","r1","b2","r2")) # my fabricated function
2002 Dec 05
2
Problems with segments and multiple graphs
I would like to create a page of two graphs (2 rows by 1 col) and then
draw vertical lines (segments?) on both graphs from the minimum
values to the corresponding maximum value.
So I have tried
#
> y <- rnorm(3000)
> par(mfrow=c(2,1))
> plot(y,type="l")
> plot(cumsum(y),type="l")
> segments(1000,min(cumsum(y)),1000,max(cumsum(y)))
> par(mfg=c(1,1))
>
2004 Jun 01
1
WinMenu's question
I am using the Windows menu functions below which will work on the
first pass, but if I repeat the same script I cannot get the
WinMenuAddItem to work. This is a problem if I change the menu
structure and reread the source code I am forced to quit and restart Rgui.
"try.menu" <- function(){
OS <- .Platform$OS.type
GUI <- .Platform$GUI
if (!(OS == "windows" &
2004 Jul 20
1
Histogram without common borders
Is it possible to produce a histogram directly using the hist()
function with the common borders removed?
It can be done by plotting the histogram object using type 's'teps.
my.hist <- hist(x,plot=FALSE)
plot(my.hist$breaks,c(0,my.hist$counts),type='s')
I would appreciate help
Ross Darnell
--
University of Queensland, Brisbane QLD 4067 AUSTRALIA
Email: <r.darnell at
2005 Sep 13
2
Translating lme model call to lme4
I would appreciate help translating the following lme model to an lmer
function.
lme(lognrms ~ Group*Rotation*muscle*side*support*arms,
random=~1|Subject/Stratum2/rep, data=Data)
Many thanks
Ross Darnell
r.darnell at uq.edu.au
1999 May 19
1
shell command
Using R (version 0.63.3) for MS windows, I try the following command
> shell(paste("cd ",getenv("RHOME"),sep=""))
which replies with an error message
Too many parameters - FILES\RW0633
which appears to suggest that the space if the path name is causing
difficulties to the cd command. getenv returns
> getenv("RHOME")
RHOME
2007 Jan 25
3
Error in loadNamespace(name) (PR#9464)
Full_Name: Ross Darnell
Version: 2.4.1
OS: Linux
Submission from: (NULL) (130.102.133.33)
rdarnell at pc:~/Data$ ls -al .RData
-rwxrwxrwx 2 root root 13551 2006-12-06 08:58 .RData
rdarnell at pc:~/Data$ R
R version 2.4.1 (2006-12-18)
Copyright (C) 2006 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to
2001 Oct 23
1
Rows function in nlme package
The Rows function which is called from plot.compareFits in the nlme package
is not found.
> plot(compareFits(coef(bp.model3),coef(bp.model3M)))
Error in plot.compareFits(compareFits(coef(bp.model3), coef(bp.model3M))) :
couldn't find function "Rows"
>
Can I find it elswhere? Have I missed a required package?
Thanks
Ross Darnell
> library(help=nlme)
nlme
2005 Apr 14
1
predict.glm(..., type="response") loses names (was RE: [R] A sugg estion for predict function(s))
> From: Ross Darnell
>
> Liaw, Andy wrote:
> >>From: Liaw, Andy
> >>
> >>
> >>>From: Ross Darnell
> >>>
> >>>A good point but what is the value of storing a large set of
> >>>predicted
> >>>values when the values of the explanatory variables are lost
> >>>(predicted
>
2007 Apr 18
1
[Bridge] RE: [VLAN] Re: [PATCH/RFC] Let {ip, arp}tables "see" bridged VLAN tagged{I,AR}P packets
-----Original Message-----
>From: Tommy Christensen [mailto:tommy.christensen@tpack.net]
>Sent: Wednesday, October 08, 2003 10:09 AM
>To: Christian Darnell
>Cc: 'Linux 802.1Q VLAN'; Bart De Schuymer; netdev@oss.sgi.com; bridge
>Subject: Re: [Bridge] RE: [VLAN] Re: [PATCH/RFC] Let {ip, arp}tables
>"see" bridged VLAN tagged{I,AR}P packets
>
>
>
>This
1999 Jun 18
1
R INSTALL -l
The FAQ says in
[5.2 How can add-on packages be installed?]
to install a package to a private tree, use
[$ R INSTALL -l lib pkgdir_1 ... pkgdir_n]
where lib gives the path to the library tree to install to.
which, for me, returns
Package '-l' does not exist. Has there been a change?
Thank you
Ross
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.
|Ross
2002 Dec 11
0
stepAIC and the keep argument
I would like to "keep" the call formulae from the stepAIC sequence.
Does anyone know of an example showing how to use the keep argument?
Help would be much appreciated.
Ross Darnell
Email: <r.darnell at shrs.uq.edu.au>
2007 Oct 17
2
Need help with function that includes 2 summation
I am relatively new to R, so this may be a much simpler question than it
seems to me. I am trying to create a function that includes two
summations, and can't figure out how. I am attaching the equation as a
pdf file. This function will then be optimized over a chosen range of
values, but right now I just need help with the function. Thank you.
Zack Darnell
Duke University
--
Zack
2007 Sep 10
1
lattice panel.lmline problem
I am wanting to generate panels showing scatterplots with the linear
fitted line for two groups within each panel superimposed.
I have two conditioning factors, "variable" and "Group" and I want
separate panels for each level of "variable"
with different symbols and "lmline"s for each level of "Group". However
all observations for a group are
2000 Apr 12
1
Matrix indexing question
I apologise if this type of question has been answered before, however
how do I count the number of TRUE's in the upper half (non-symmetric)
matrix of logicals.
Thank you
Ross Darnell
University of Newcastle
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Send "info",
2000 Aug 22
1
adj parameter in mtext
I am trying to adjust the sigma symbol down in the y direction with
the following command but R recycles the sigma and puts another at
-0.1 in the x axis.
Any suggestions would be appreciated.
mtext(expression(sigma),1,outer=TRUE,adj=c(0.5,-0.1))
Regards
Ross Darnell
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2001 May 04
1
image legend
I am trying to place a legend onto an image but the legend to
clipped/nonexitent outside the boundary of the image. I am wanting to
place the legend where the main title normally would appear.
I would appreciate someone telling me why I cannot do this. (Which
part of the help file I haven't read most likely)
Regards
Ross Darnell
2010 Jul 27
4
Sweave and scan()
I am introducing the scan() function to my class. Consider the following
file (Scanexamp.Rnw )
\documentclass[12pt]{article}
\begin{document}
<<>>=
height = scan()
64 62 66 65 62
69 72 72 70
part = scan(what = character(0))
"Soprano" "Soprano" "Soprano"
"Alto" "Alto" "Tenor"
"Tenor" "Bass"