Displaying 20 results from an estimated 3000 matches similar to: "Survival analysis: same subject with multiple treatments and experience multiple events"
2010 Sep 29
3
Foreman barfs on startup.
All,
First attempt at running foreman.
[pax] prov01 /usr/share/foreman/script:# ./server -e production
=> Booting WEBrick
=> Rails 2.3.5 application starting on http://0.0.0.0:3000
/usr/share/foreman/vendor/rails/activesupport/lib/active_support/dependencies.rb:443:in
`old_load_missing_constant'': uninitialized constant Puppet::Rails
(NameError)
from
2011 Apr 20
1
Extrapolating data points for individuals who lack them
Hi,
We have an experiment where individuals responses were measured over 5 days. Some responses were not obtained because we only allowed individuals to respond within a limited time-frame. These individuals are given the maximum response time as they did not respond, yet we feel they may have done if given time (and by looking at the rest of their responses over time, the non-response days stand
2011 Jun 09
5
ultrasecure sshd server
Hi,
How to configure sshd to required both ssh public key and user
password also? yes, stupid, but required on my setup..
--
Eero
2008 Dec 24
7
GLBasic problem with 1.11.1
When trying to use the GLBasic editor in the latest version of WINE 1.11.1 (and with Ubuntu 8.10), I get the following error messages :
fixme:actctx:parse_depend_manifests Could not find dependent assembly L"Microsoft.VC80.CRT"
err:module:import_dll Library MFC80.DLL (which is needed by L"C:\\Program Files\\GLBasic\\EditorE.exe") not found
err:module:import_dll Library
1999 May 15
2
vsize and nsize
I am running R version ??? under Redhat 5.2. It seems as though the
--nsize object has no effct on the size of the allocated Ncells as
determined using gc(). Yes, I have that much data....
That is if I envoke R with
R --vsize 100 --nsize 5000000
then type
gc()
I get
free total
Ncells 92202 200000
Vcells 12928414 13107200
Thanks
Tony Long
Ecology and Evolutionary Biology
Steinhaus
2007 Dec 31
3
Survival analysis with no events in one treatment group
I'm trying to fit a Cox proportional hazards model to some hospital
admission data. About 25% of the patients have had at least one
admission, and of these, 40% have had two admissions within the 12
month period of the study. Each patients has had one of 4
treatments, and one of the treatment groups has had no admissions for
the period. I used:
2011 Aug 30
1
ROC plot for KNN
Hi I need some help with ploting the ROC for K-nearest neighbors. Since KNN
is a non-parametric classification methods, the predicted value will be
either 0 or 1.
It will not be able to test for different cutoff to plot ROC. What is the
package or functions I should use to plot ROC for KNN?
Thanks.
Qian
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2009 Dec 01
1
LMER: How to specify Random Effects
I saw different specifications for Random Effects and I'm confused about
the use of "/" and the use of "(0+...|)" .
Let say we have a nested structure where some countries have some
several plants in different states and we measure the reaction to a drug.
The list of Countries = USA, France, Italy
The States for USA = Michigan, Florida, California
The States for France
2017 Apr 15
0
OT: systemd Poll - So Long, and Thanks for All the fish.
On 09/04/17 14:39, Anthony K wrote:
>
> So, at which stage are you in w/ regards to adopting systemd? Are you
> still ridiculing it, violently opposed to it, or have you mellowed to it?
Thanks for all those that responded. systemd still appears to be a sore
topic.
systemd is still coping a whole lot of ridicule but not so violent
opposition. Can't say I understand why, but you
2011 Mar 17
3
is this possible
dear all
i need driver for IC CY7C68001 (cypress semiconductor) for linux .can anyone guide me for this driver link? i am running my exe through Wine.. so wheter wine will automatically pick the driver from kernal or i have to add this driver into the W ine lib ??
regards
2010 Jun 18
2
double integral
Sir,
I want to calculate double integral in R. Is there any function to do this?
Regards,
Suman Dhara
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2010 Sep 28
2
Use R in Visual Basic Environment
I need your kind help regarding the following:
I wish to know is there any way to use R in Visual Basic environment. I want
to develop a VB application where R can be embedded (R will work as a back
end statistical engine). If available, please provide me some source of
study materials/articles available on the internet related to this.
--
Thanks & Regards,
Soumen Pal
[[alternative HTML
2005 Sep 19
1
pairwise comparisons among treatments
Hello R listing,
I did two-way anova on lm. Further question the investigator
interested in is what two treatments are different?
I am looking for a command which could do pairwise comparison for
every treatment.
Could anyone help me out?
Thanks a bunch
Kevin
2006 Sep 22
1
Propensity score and three treatments
Dear All,
I would like to find something ( references, code,..) to implement a
comparison of three
treatments in an observational study using the 'Propensity Score'.
Any help is much appreciated. Thanks!
Giovanni
--
dr. Giovanni Parrinello
Department of Biotecnologies
Medical Statistics Unit
University of Brescia
Viale Europa, 11 25123 Brescia
email: parrinel at med.unibs.it
Phone:
2009 Mar 25
0
Longitudinal study with three treatments
Hi,
I am comparing three treatments. The data come from a longitudinal study,
and for each treatment I have only 1 case, on which the observations across
20 years are made. My main aim is to compare the three treatments, but the
effect of time is of interest as well. Which of the many R functions should
I use for that purpose?
I applied the aov function and received this:
2004 Jun 05
0
Comparing treatments in Multivariate Analysis
Hi R-users
I'd like to know if there is some packages or functions to do comparison
of treatments after that manova pointed differences between them.
Any suggestions are much appreciated.
__________________________________________________________
Eng. Agr., M.Sc. Eduardo Dutra de Armas
__________________________________________________________
Centro de Energia Nuclear na Agricultura
2008 May 20
1
contr.treatments query
Hi Folks,
I'm a bit puzzled by the following (example):
N<-factor(sample(c(1,2,3),1000,replace=TRUE))
unique(N)
# [1] 3 2 1
# Levels: 1 2 3
So far so good. Now:
contrasts(N)<-contr.treatment(3, base=1, contrasts=FALSE)
contrasts(N)
# 1 2
# 1 1 0
# 2 0 1
# 3 0 0
whereas:
contr.treatment(3, base=1, contrasts=FALSE)
# 1 2 3
# 1 1 0 0
# 2 0 1 0
# 3 0 0 1
contr.treatment(3, base=1,
2011 Apr 15
2
boxplot with 2 treatments and 2 variables (with 2 corresponding y-axes)
Hi,
I am a complete newcomer to R and although I can plot standard box-plots I am struggling with this...
I have two treatments - A & B, and 2 variables 1 & 2. I want to compare boxplots of variable 1 with variable 2 for each treatment. I would also like them to all be on the same graphic.
I would like treatment to be on the x axis (A and B) and above A and B have their corresponding
2008 Jul 30
1
Mixed effects model where nested factor is not the repeated across treatments lme???
Hi,
I have searched the archives and can't quite confirm the answer to this.
I appreciate your time...
I have 4 treatments (fixed) and I would like to know if there is a
significant difference in metal volume (metal) between the treatments.
The experiment has 5 blocks (random) in each treatment and no block is
repeated across treatments. Within each plot there are varying numbers
of
2008 Mar 04
2
summarizing replicates with multiple treatments
I have a dataframe with several different treatment variables, and
would like to calculate the mean and standard deviation of the
replicates for each day and treatment variable. It seems like it
should be easy, but I've only managed to do it for one treatment at a
time using subset and tapply. Here is an example dataset:
> `exampledata` <-
structure(list(day = c(1L, 1L, 1L, 1L, 1L,