Displaying 20 results from an estimated 800 matches similar to: "Sv: Sv: Ordinal Regression"
2000 Feb 24
0
Sv: Ordinal Regression
Patrick Lindsey has made available a library devoted to ordinal models available at:
http://www.luc.ac.be/~plindsey/publications.html
Best wishes
Troels Ring
-----Oprindelig meddelelse-----
Fra: Peter Malewski <p.malewski at tu-bs.de>
Til: E. S. Venkatraman <venkat at biost.mskcc.org>
Cc: r-help at stat.math.ethz.ch <r-help at stat.math.ethz.ch>
Dato: 24. februar 2000 22:48
1999 Aug 19
2
OT: PSTOWMF
Hallo,
I've produced via R-0.62 several Life-tables 50*6 (mfrow=c(2,3))
as postscriptgraphs. The phd student, who asked for this, use word for
windows--therefore i converted the whole stuff with pstoimg to gifs.
Unlikly the result is not sufficient (I was told)...
Is there a tool to convert ps to wmf/emf ? I looked for it but haven't
found anything...
Thanks for an answer
Peter
2000 Feb 24
1
Ordinal Regression
Hi:
Is there any function in R to fit ordinal regression models (linear
and non-linear) described by Peter McCullagh.
Regression Models for Ordinal Data, JRSS-B, 1980, 42:109-142
Thanks,
Venkat
-----------------------------------------------------------------------
E. S. Venkatraman, Ph.D. Phone: (212) 639-8520 Fax: (212) 717-3137
Assistant Attending Member Memorial
1999 Sep 08
1
No subject
Hallo,
I'm looking for a "sunflower" plot. I noticed the
Splus function "p.sunflowers" (Andreas Ruckstuhl, Werner Stahel, Martin
Maechler, Tim Hesterberg) don't work... If its not available I would port
this function...
Thanks for 1 answer
P
***************************************************************************
P.Malewski Tel.: 0531 500965
Maschplatz 8
2000 Jul 26
1
min(c()) = inf ??? (PR#618)
min of an empty vector gives inf, should be NA / NULL ???
> min(c())
[1] 2147483647
Warning message:
no finite arguments to min/max; returning extreme. in: min(..., na.rm =
na.rm)
> min(c(NA,NA),na.rm=T)
[1] 2147483647
Warning message:
no finite arguments to min/max; returning extreme. in: min(..., na.rm =
na.rm)
(the same for max)
--please do not edit the information below--
2000 Feb 20
1
split.screen + postscript Problem (PR#454)
Dear R-helpers,
with R-0.99a, Linux, Red-Hat 6.1 derivat (Halloween Linux) I have
the following Problem with this code:
graphics.off()
close.screen(all=T)
temp <- matrix(c(0 , 1 , .4 , 1,
0 , 1 , 0 ,.4),
ncol= 4,
byrow=T )
split.screen(temp)
plot(1:100)
2000 Mar 11
1
polr question
Dear friends.
Do Polr in Mass change the sign of the coefficients ? Example (McCullagh 1980)
options(contrasts=c("contr.treatment","contr.poly"))
library(Mass)
freq <- c(19,29,24,497,560,269)
yy <- ordered(gl(3,1,6))
z4 <- polr(yy~x,weights=freq)
> z4
Call:
polr(formula = yy ~ x, weights = freq)
Coefficients:
x2
-0.6026492
Intercepts:
1|2
2005 Jun 07
1
ordglm -- simple question
My attempt to test a model using ordglm code is running into problems, and
I thought if you have a moment you might illucidate the situation.
Here is the data:
http://www.people.fas.harvard.edu/~corr/6.4.05.RData
Here is the code:
# I coerce tcn8 matrix data to a vector, because ordglm will not accept
matrix data.
y<-as.vector(tcn8[,62])
x<-as.vector(tcn8[,60])
2006 May 03
1
Problem in using confint method on polr model object
I fit a proportional odds model
with the polr-function of the MASS package from
Venables and Ripley
Applying the confint method to calculate confidence intervals for the
parameters I get
the following error message
Waiting for profiling to be done...
Re-fitting to get Hessian
Error in X[, -i, drop = FALSE] : incorrect number of dimensions
Can someone explain the error-message?
(The
2000 Jul 26
3
merge aint merging
g'day R friends,
can anyone please help me with a frustrating merge?
The number of rows of a resulting merge is the smaller of the 2 dataframes
used as input. What am I doing wrong? I'm using 1.1.0 on redhat 6.2
thanks,
John Strumila
> xx[1:10,]
datetime c
948992940 948992940 0
948993000 948993000 0
948993060 948993060 0
948993120 948993120 0
948993180 948993180 0
2001 Aug 15
2
RegExp Question
I have to admit that I'm a bit ignorant about
regular expressions...I have a problem with "gsub":
under unix I can :
> cat tmp.txt
F.123 F.123
F123 F123
sed 's/F\./d/g' tmp.txt
d123 d123
F123 F123
that is: replacing "F.", however under R:
gsub("F\.","d",c("F123","F.123"),extended=F)
[1] "d23"
2002 Apr 26
1
ORDGLM function - which package has it?
I am new to the R.
I managed to download and install and got some basic summary work done. I
need to do ORDERED LOGIT model.
I searched web-site and mail archives and I think that I need to use
"ordglm" function. However, I am not sure what package has it. I tried
several (like RMUTIL, ORDINAL, REPEATED) etc. but no avail. Any help is
useful.
I still haven't subscribed to the
2001 May 07
1
qt with ncp?
Does anybody has a function or idea how to calculate qt with a noncentrality
parameter? I'm porting a SAS-macro for equivalence (Wellek, 1994 TT2ST) to R
and it seems that I need this to calculate tinv (SAS-command, I hope that
this is R's qt,...I get the SAS-macro manual next week).
thanks
Peter
--
P.Malewski, Limmerstr.47, 30451 Hannover, 0511-2135008
At work:
2002 Feb 26
1
? Nice colors for lattice?
Just a quick question: Does anybody has a nice palette (
yes, I know that this isn't the right lattice-command) for lattice?
I'm just making some graphs for a poster-presentation and I'm don't really
like these trellice colors.
Thanks
Peter
--
P.Malewski, Limmerstr.47, 30451 Hannover, 0511-2135008
At work: http://www.MH-Hannover.de 0511 532 3194 / Fax: 0511 532 3190,
2001 Jun 06
1
lattice (!under development!) font curiosity
Perhaps this might be a font problem, it might be that my font dirs
are broken (but I don't think so, it is a standard potato inst.):
> xyplot(rnorm(10) ~ rnorm(10) ,main=list("???dsa",cex=2))
...displays German special characters false (as greek letters).
Curiously these work o.k.:
> xyplot(rnorm(10) ~ rnorm(10) ,main="?dsa")
> xyplot(rnorm(10) ~ rnorm(10)
2001 Jun 06
1
lattice (!under development!) font curiosity
Perhaps this might be a font problem, it might be that my font dirs
are broken (but I don't think so, it is a standard potato inst.):
> xyplot(rnorm(10) ~ rnorm(10) ,main=list("???dsa",cex=2))
...displays German special characters false (as greek letters).
Curiously these work o.k.:
> xyplot(rnorm(10) ~ rnorm(10) ,main="?dsa")
> xyplot(rnorm(10) ~ rnorm(10)
2001 Jun 06
1
conditional evaluation with ";"?
Is this a bug:
assume "XYZ" is a non existing object:
> XYZ
Error: Object "XYZ" not found
then:
> XYZ;ls()
Error: Object "XYZ" not found
>
ls() is not evaluated ("XYZ;XYZ" don't give two errors)
I'm quiete unsure if this is intended help(";") returns "No documentation"
peter
Version:
platform =
2001 Jun 01
4
multiple lattice-pages (development package!)...
One Question: if I make a lattice-plot (beware: under development!) with
a special layout e.g. c(2,2,4):
p1 <- xyplot(y~x|id,data=data,layout=c(2,2,3))
is there a way to print.trellis e.g. the second page of the trellis
object "p1"?
print.trellis(p1,page=2) #!wrong!
I want this to automatically dev.print the pages (no, I don't want multiple
postscript pages). If this
2002 Jul 16
0
problem with german fonts (gnu-emacs 21.2.1, ess-5.1.21, w95)
I have a little problem, I cannot solve (at least reasonable fast)
I use gnu-emacs 21.2.1 with r-1.5.1 on windows 95. In recent versions
I changed "process-coding-system-alist" (C-x[REt]p) to "latin-1". Then I was
able to plot german "????" etc(rgui does make this correct).
With the new R version this does not work any
more. I tried to use some other codings systems
2000 Aug 30
1
How can I start R
I am not good in English, so excuse me.
I have just install R.
I put the package in the file OPT.
./configure
make
make install
But i dont now how to run this application.
Can you help me.
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