Displaying 20 results from an estimated 9000 matches similar to: "methods for interval-censored data"
2001 Feb 28
2
(off topic) Re: Notepad
At 21:57 28/02/01 +0100, Peter Dalgaard BSA wrote:
>Jim Lemon <bitwrit at ozemail.com.au> writes:
>
>> 3) The usual number of responses spent a lot of time dissing NotePad and
>> advertising their favorite editor. As various contributors noted,
>> NotePad actually does most of the things that some people said it
>> doesn't. Positive advice (like the fact
2001 Apr 02
2
Censored or truncated Regression Models/Tobit
Hi,
what is the best way to estimate a tobit(truncated) regression model in
R ?
Is there already a packet available ?
Gruss
Ralph Leonhardt
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2001 Oct 10
2
How to comment out multiple lines in R source code?
Hi,
Is there a way to comment out multiple lines at once in R source code like C
language's /* */ struct?
This is quite useful when one is testing different sections of a source
code.
Thanks,
Jonathan
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2001 Feb 07
5
zero inflated poisson and censored-continuous models
I wonder if there is a package that will estimate a Zero Inflated Poisson
Model (ZIP), and also if there is a package that will estimate what is
called the Tobit model: that is a combination of censored and observed
values in the same sample.
Georgina Bermann
Biostatistics
AstraZeneca R&D M?lndal
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r-help mailing
2000 Sep 05
2
how to detach a library?
Dear R-users,
What command do I need to use to detach a library?
(without restart the R session).
Thanks,
Agus
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2006 Nov 01
1
Fitting mean and covariance of Multivariate normal with censored data
Hello,
I have been googling for 2 days and I cannot find the answer in
previous posts.
I have a set of d-dimensional data elements (d=11 .. 14), each data
point can be censored at different values both
Lower-limit and upper limit.
N = 2000 sets of vectors of
D=11 data points per vector.
Each of the N*D points can have different upper and lower limits.
I "simply" want to fit a
2000 Apr 22
1
censored bootstrap
Hello,
I have been trying to use the censored bootstrap function 'censboot'
from the library boot, with the function 'survfit' from the library
survival5. My code is:
surv.fun <-function(data) {
sur<-survfit(Surv(data[,1],data[,2]), data=data)
}
c.boot<-censboot(m,surv.fun,R=99)
m is my data set
I get the error message:
Error in
2001 Mar 11
2
Kaplan-Meier for left-truncated, right-censored data
Is it possible to calculate Kaplan-Meier for left-truncated,
right-censored data using survival5?
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2001 Feb 12
2
CensorReg
Hi Group,
I wonder if R has the function CensorReg which takes
care of left truncation. I know it's in S. Thank you
so much!
Kel
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r-help
2005 Oct 20
4
read.fwf doesn't work with header = TRUE (PR#8226)
Full_Name: Emmanuel Paradis
Version: 2.1.1
OS: Linux
Submission from: (NULL) (193.49.41.105)
read.fwf(..., header = TRUE) does not work properly since:
1/ the original header is printed on the console and not in FILE;
2/ the different 'parts' of the header should be separated with tabs
to work with the call to read.table.
Here is a suggested fix for src/library/utils/R/read.fwf.R:
2006 Feb 13
2
Survreg(), Surv() and interval-censored data
Can survreg() handle interval-censored data like the documentation
says? I ask because the command:
survreg(Surv(start, stop, event) ~ 1, data = heart)
fails with the error message
Invalid survival type
yet the documentation for Surv() states:
"Presently, the only methods allowing interval censored data are
the parametric models computed by 'survreg'"
2004 May 21
1
interval-censored data in coxph
Hi,
I am wondering how to specify interval-censored data
in coxph? The example in the help page
summary(coxph(Surv(start, stop, event) ~ x, data =
test2))
is for counting process data, is the counting process
data the same as interval-censored data?
Thanks
__________________________________
2009 Jan 09
2
rpart with interval censored data crashes R
Hi Everyone,
This example code results in R 'crashing'; that is the R application closes
with no warnings or error messages.
#-----------------------
myD <- read.table(stdin(), header=TRUE, nrows=20)
Broth Salt pH Temp N Y Growth
1 310 9.0 2.92 10 90.0 NA 0
2 615 6.0 7.82 30 1.0 2 1
3 217 2.0 7.34 10 7.0 8
2001 Feb 01
3
Rotated mtext
I seem to remember this coming up before, but I can't find it any messages I've
saved or in the archives (searching by subject). I want to rotate mtext so that
it's perpendicular to the right side. I tried srt=90 and lots of other values,
but it seems to be ignored. Is there a way to do this?
______________________________________________________________________
Stuart Luppescu
2000 Oct 25
2
par(ask=T) in termplot()
Hi,
I think it would be nice to have par(ask=T) set by default in termplot(),
like it is in plot.lm().
Best,
Emmanuel Paradis
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2008 Dec 23
6
Interval censored Data in survreg() with zero values!
Hello,
I have interval censored data, censored between (0, 100). I used the
tobit function in the AER package which in turn backs on survreg.
Actually I'm struggling with the distribution. Data is asymmetrically
distributed, so first choice would be a Weibull distribution.
Unfortunately the Weibull doesn't allow for zero values in time data,
as it requires x > 0. So I tried the
2001 Mar 03
11
Emacs & ESS under Windows
After the discussions about appropriate editors under Windows to use with
R, I have managed to install Emacs, XEmacs, and ESS under WinNT 4.0, and
these work fine. It's not necessary to compile anything to use R with ESS,
just to install Emacs and ESS, and do a few modifications in some files.
XEmacs is also easy to install but apparently ESS cannot run with it
(confirmed by a message by Tony
2007 Nov 29
1
Survreg(), Surv() and interval-censored data
Can anybody give me a neat example of interval censored data analysis codes in R?
Given that suvreg(Surv(c(1,1,NA,3),c(2,NA,2,3),type="interval2")~1)
works why does
survreg(Surv(data[,1],data[,2],type="interval2")~1)
not work where
data is :
T.1 T.2 Status
1 0.0000000 0.62873036 1
2 0.0000000 2.07039068 1
3 0.0000000
2003 Dec 04
2
extracting p value from GEE
Dear R users,
If anyone can tell me how to extract the p values from the output of gee?
Many thanks in advance.
Yu-Kang
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2000 Oct 27
1
par(ask=T) in termplot() (PR#711)
At 11:57 25/10/00 +0100, Brian Ripley wrote:
>> Date: mer., 25 oct. 2000 12:38:55 +0200
>> From: Emmanuel Paradis <paradis@isem.univ-montp2.fr>
>
>> I think it would be nice to have par(ask=T) set by default in termplot(),
>> like it is in plot.lm().
>
>Well, it isn't really the default in plot.lm, the default for `ask' being
>
>interactive()