Displaying 20 results from an estimated 600 matches similar to: "Survreg with gamma distribution"
2005 Feb 24
2
survreg with gamma distribution: re-post
Dear r-help subscribers,
A couple of weeks ago I sent the following message to the r-help mail
list. It hasn't generated any response, and I could really use some help
on this. Anyone able to help?
Thanks again,
Roger Dungan
>>
I am working on some survival analysis of some interval censored failure
time data in R. I have done similar analysis before using PROC LIFEREG
in SAS. In
2005 Oct 31
3
Still a bug with NA in sd() or var()?
Dear R-users,
Running R 2.1.1 in WindowsXP, there seems to be a 'bug' in sd()
If
>x<-c(1,2,3,NA,5)
>mean(x)
[1] NA
But
>sd(x)
Or
>var(x)
give
Error in var(x, na.rm = na.rm) : missing observations in cov/cor
There are obvious work-rounds, like
>sd(x, is.na(x)==F)
which gives the result (with error message)
[1] 1.707825
Warning message:
the condition has length > 1
2006 Apr 25
4
Help needed
Hi,
I am trying to change a SAS macro to R.
here is my code. I get an error at the last line.
attach(fram)
dset1<-cbind(AGE,BMI,DEATH)
> BMIGRP<-cut(BMI,breaks=3,right=TRUE)
> AGEGRP<-floor(AGE/10)-2
> dset<-cbind(AGEGRP,BMIGRP,DEATH)
> maxage<-max(dset[,1])
> minage<-min(dset[,1])
> #maxcls<-dset[,2]
> #mincls<-dset[,2]
>
2005 Feb 01
0
Convergence problems with survreg()
Dear R mailing list,
I'm trying to fit a censored regression model to a large (dimension of the
design matrix is 2e5 by 7) right truncated data by means of the
survreg(Surv()) function, as suggested by Paul Johnson on his "R Tips" web
page.
Possibly due to the sensitivity to the initial values of the Newton-Raphson
routine in use by survreg(), resulting regression outputs turn
2011 Apr 27
3
MASS fitdistr with plyr or data.table?
I am trying to extract the shape and scale parameters of a wind speed
distribution for different sites. I can do this in a clunky way, but
I was hoping to find a way using data.table or plyr. However, when I
try I am met with the following:
set.seed(144)
weib.dist<-rweibull(10000,shape=3,scale=8)
weib.test<-data.table(cbind(1:10,weib.dist))
2009 Aug 25
3
Covariates in NLS (Multiple nonlinear regression)
Dear R-users,
I am trying to create a model using the NLS function, such that:
Y = f(X) + q + e
Where f is a nonlinear (Weibull: a*(1-exp(-b*X^c)) function of X and q is a covariate (continous variable) and e is an error term. I know that you can create multiple nonlinear regressions where x is polynomial for example, but is it possible to do this kind of thing when x is a function with unknown
2015 Feb 17
0
Help with archive server
Am 17.02.2015 um 13:50 schrieb Joy:
> Hi,
> I want to build a system where 6 months old mail to be moved to
> archive server to keep my mailbox clean and fast.
>
> Is there any way to achieve the same using any pre-built binary shipped
> with dovecot ?
>
>
> Thanks and Regards
>
> Joy
>
Classical Mail Archive means store a copy of all incoming mail (
2010 Jul 01
0
Intermittent authentication error
Hello,
I have an intermittent authentication error between a Windows 2003 Server and AIX 6.1 TL4 Samba 2.2.7. I have the Samba server passing auth details to an active directory server. The account exists on AIX but is locked and there is no smbpasswd entry (this is how I setup all my samba shares). On the Windows server a mapping has been created to mount this path on restart. In most cases
2005 Jun 09
2
Weibull survival modeling with covariate
I was wondering if someone familiar
with survival analysis can help me with
the following.
I would like to fit a Weibull curve,
that may be dependent on a covariate,
my dataframe "labdata" that has the
fields "cov", "time", and "censor". Do
I do the following?
wieb<-survreg(Surv(labdata$time,
labadata$censor)~labdata$cov,
2009 May 25
3
long format - find age when another variable is first 'high'
Dear R,
I've got a data frame with children examined multiple times and at various
ages. I'm trying to find the first age at which another variable
(LDL-Cholesterol) is >= 130 mg/dL; for some children, this may never happen.
I can do this with transformBy and ddply, but with 10,000 different
children, these functions take some time on my PCs - is there a faster way
to do this in R?
2014 Feb 27
0
AIX WINBIND ISSUES
All,
I am having a winbind module load error on aix 7.1 trying to load winbind
module for 3.6.0.
methods.cfg
WINBIND:
program_64 = /usr/lib/security/WINBIND_64
(have tried authonly here)
NIS:
program = /usr/lib/security/NIS
program_64 = /usr/lib/security/NIS_64
DCE:
program = /usr/lib/security/DCE
[root] on [barrow] on [/rehash/samba-3.6.0] {932}
2014 Feb 27
0
AIX 7.1 Winbind Module Load Issues
All,
I am having a winbind module load error on aix 7.1 trying to load
winbind module for 3.6.0.
methods.cfg
WINBIND:
program_64 = /usr/lib/security/WINBIND_64
(have tried authonly here)
NIS:
program = /usr/lib/security/NIS
program_64 = /usr/lib/security/NIS_64
DCE:
program = /usr/lib/security/DCE
[root] on [barrow] on [/rehash/samba-3.6.0] {932}
2017 Jan 30
2
Fwd: Can somebody explain the file ownership of a
Hi All,
We're implementing a fully integrated Samba setup with the Active directory
on IBM AIX. From AIX level we have established the single sign on against
Windows AD 2012R2. Currently the following user accounts and groups exists
on the AD domain.
# cat /etc/samba/smb.conf
[global]
security = ADS
workgroup = PAPERCLIP
realm = PAPERCLIP.SC.NZ
2003 Mar 10
1
rpart returning only 1 node
Hi,
This may actually be a theoretical question.
When I tried to do the following:
##########################################################
> colnames(rating.adclms)
[1] "usage" "mileage" "sex" "excess" "ncd"
[6] "primage" "minage" "drivers" "district" "cargroup"
[11]
2014 Feb 27
1
AIX 7.1 Winbind Module Problems
All,
I am having a winbind module load error on aix 7.1 trying to load
winbind module for 3.6.0.
methods.cfg
WINBIND:
program_64 = /usr/lib/security/WINBIND_64
(have tried authonly here)
NIS:
program = /usr/lib/security/NIS
program_64 = /usr/lib/security/NIS_64
DCE:
program = /usr/lib/security/DCE
[root] on [barrow] on [/rehash/samba-3.6.0] {932}
2004 Nov 11
0
Mini HowTo AIX4.3.3-AD-Winbind
Integrating SAMBA\WINBIND on AIX 4.3.3 with Microsoft Active Directory.
Overview: This document is a roadmap on how you can integrate SAMBA with
your Active Directory environment. This configuration will allow
your Samba server to appear as a member of Active Directory. It will also
allow your telnet sessions to use Active Directory for
authentication.
AIX Setup:
Verify your system has
2018 Jan 20
2
Changing expired Samba AD password during Windows login
Thanks for the help, however I don't think your suggestion applies in my
case. On a fresh install of Samba 4.7.4 AD you cannot change a user
password on a logged in PC through cntl-alt-del -> ChangePassword
because the default MinAge is 1 days. I had to use the "samba-tool
domain passwordsettings set --min-pwd-age=0" command to make the
logged-on style of password change
2002 Dec 14
4
scan() with "what"
Hi,
I have a medium-sized (19MB) CSV file that I'd like to read into R. The
read.csv() function seems to be a bit inefficient to deal with it, and I
remember that using scan() with "what" options is better.
However I'm unable to understand how to use it. The first few lines of
the data look like:
2008 Dec 02
2
Samba ADS Error "Session setup failed: Call returned zero bytes (EOF)"
Hi Samba Bods,
Sorry for re-posting this one but I got no response to my last post except
for a level 10 logs request which I uploaded last week.
I have been looking at numerous howtos and newsgroup postings and I cannot
spot what the issue is. I am sure its a simple config issue, but I am lost
..
I am using Samba 3.2.4 compiled from source on AIX 5.3 TL8 and using
"security =
2008 Nov 26
3
AIX 53TL8 Samba 3.2.4 Active Directory Win2k3 - "session setup failed: Call returned zero bytes (EOF)"
Hi All,
I am using Samba 3.2.4 compiled from source on AIX 5.3 TL8 and using
"security = SERVER" in the smb.conf works fine, however I am having
some issues when using "security = ADS" ..
I have followed numerous HOWTOs and newsgroup listings and seem to be
going round in circles ..
I think I can authenticate ok against the domain win2k3 server, but
then Samba bombs out with