Displaying 20 results from an estimated 2000 matches similar to: "Survey: R in Pharma"
2006 Jun 24
0
Documentation detail [was: Merging factor levels.]
Hi to R developers.
In the "Details:" section of "?levels", it would be nice including the
following sentence, taken from a reply from Brian Ripley:
If you set two levels to be the same label, they get merged.
Granted, the "Examples:" section does have a terse comment and examples
from which users may imply this behaviour. Yet, the documentation would
be
2005 May 10
0
Re: 80-page Pharma complimentary report-Emerging Business models in Pharma (PR#7847)
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Hello!
This is just a quick note to inform you about an 80-page report on the Pharmaceutical Industry that we're able to provide you - at no cost.
Compiled by some of the best analysts in the industry, the report provides an insight into the latest trends and strategies in the Pharmaceutical Industry.
2004 Dec 01
2
request for help on statistical applications in pharma
Hi all there
Can some one who have experience and knowledge in the pharma industry give me broad details on the subject "Statistical applications for pharma industry". I am new to the subject i.e. what kind of statistical tools used being unique /or atleast specific for pharma industry.
It will be of great help as i am actively looking into the subject. though i am quite familiar
2003 Mar 12
1
plot() with type="s" and lty=2 (PR#2630)
Full_Name: Jerome Asselin
Version: 1.6.2
OS: RedHat Linux 7.2
Submission from: (NULL) (142.103.173.179)
In the following example, the line type lty=2 does not show properly
across the entire line.
x <- c(seq(0,.5,.001),seq(.6,1,.1))
y <- rep(1,length(x))
plot(x,y,type="s",lty=2)
Sincerely,
Jerome Asselin
2000 Feb 14
2
Error in the inverse of a diagonal matrix?
I?m new to R so maybe this issue has been asked before and I still could not read the complete set of past messages sent to the list.
I found a weird behabiour that I will explain with a simple example. Lets consider the following block of commands:
> x <- diag(c(1,4,10))
> x
[,1] [,2] [,3]
[1,] 1 0 0
[2,] 0 4 0
[3,] 0 0 10
> invx <- x^-1
> invx
2010 Feb 20
6
l2arc current usage (population size)
Hello,
How do you tell how much of your l2arc is populated? I''ve been looking for a while now, can''t seem to find it.
Must be easy, as this blog entry shows it over time:
http://blogs.sun.com/brendan/entry/l2arc_screenshots
And follow up, can you tell how much of each data set is in the arc or l2arc?
--
This message posted from opensolaris.org
2005 Jan 25
2
tapply and names
I have a data frame containing children, with variables 'year' = birth
year, and 'm.id' = mother's id number. Let's assume that all the births of
each mother is represented in the data frame.
Now I want to create a subset of this data frame containing all children,
whose mother's first birth was in the year 1816 or later. This seems to
work:
mid <-
2002 Feb 12
1
rsync error: received SIGUSR1 or SIGINT (code 20) at rsync.c(229)
Trying to rsync between win2k machines.
rsync version is 2.5.3pre (downloaded today)
This is the message after 368100 files have been checked:
rsync error: received SIGUSR1 or SIGINT (code 20) at rsync.c(229)
My cmdline is :
c:\sbin\rsync\rsync -az /cygdrive/d/Home
xxx@xxx.skelleftea.se::dropZone/GY/ba-disk01 --stats -v -P --timeout=84600
I have tried with both with and without -z (-az or -a)
2007 Jun 11
8
R vs. Splus in Pharma/Devices Industry
Following up to some extent on Friday's discussion regarding the
'validation' of R, could I ask the list group's opinion on possible
advantages of R over Splus from a pharma/devices perspective? I wish to
exclude the obvious price difference, which doesn’t seem to carry as much
weight as I would have thought. Besides, I have noticed many former Splus
users gravitating towards R,
2001 Mar 19
3
3D plots
Hi all,
I've got at really basic Q for you all: How do I produce a 3D plot in R?
Like the one in the screenshot on the R-project wab-page.
What is the command?
/Fredrik
--
-----------------------------------------------------------------
Fredrik Karlsson, Research Student
Department of Philosophy and Linguistics
Ume? University
S-901 87 UME?
SWEDEN
Tel: +46 90 786 56 84 Web:
2005 Jan 23
4
survreg: fitting different location parameters
Hi R-Help!
My question: I have lifetime/failure data of machines with different
stress levels and i think an weibull/extreme value distribution would
fit this data. So I did:
model1 <- survreg(Surv(lfailure)~stress,data=steel,dist="extreme")
(where lfailure=log(failure))
Now I would like to do a likelihood ratio test to test the hypothesis
H0: location parameters of the
2012 Jan 03
10
arc_no_grow is set to 1 and never set back to 0
Hello.
I have a Solaris 11/11 x86 box (which I migrated from SolEx 11/10 a couple of weeks ago).
Without no obvious reason (at least for me), after an uptime of 1 to 2 days (observed 3 times now) Solaris sets arc_no_grow to 1 and then never sets it back to 0. ARC is being shrunk to less than 1 GB -- needless to say that performance is terrible. There is not much load on this system.
Memory
2005 Jun 24
1
interpreting Weibull survival regression
Hi,
I was wondering if someone can help me
interpret the results of running
weibreg.
I run the following and get the
following R output.
> weibreg(Surv(time, censor)~covar)
fit$fail = 0
Call:
weibreg(formula = Surv(time,
censor)~covar)
Covariate Mean Coef
Rel.Risk L-R p Wald p
covar 319.880 -0.002 0.998
0.000
log(scale) 0.000 8.239
2005 Sep 05
12
TeX distribution on Windows
I'm looking for a Windows distribution of TeX that works with R, after a
few years' absence from Windows. On Duncan Murdoch's Rtools page fptex is
still recommended, but it turns out that fptex is "defunct" as of May 2005,
see
http://www.metz.supelec.fr/~popineau/xemtex-7.html
So, what is suggested? TUG (tug.org) recommends something called proTeXt,
which is said to be
2003 Jun 20
3
namespaces not available
This happened to me with R-1.7.0, Linux RH9:
------------------------------------------------------------------
> q()
Save workspace image? [y/n/c]: y
Warning messages:
1: namespaces may not be available when loading
2: names in persistent strings are currently ignored
gb at lasker:~/R/test$ R
R : Copyright 2003, The R Development Core Team
Version 1.7.0 (2003-04-16)
R is free software
2002 Feb 20
3
Pointer to covariates?
In the first line, use the dist function, found in library mva,
to get the distance between each pair of rows. From this
calculate an incidence matrix for which element i,j is true if
row i in dat equals row j in dat (and false elsewhere).
In the second line, for each row calculate the indices of
the matching rows and take the minimum of those as the key.
incid <-
2004 Dec 07
1
read.spss: unrecognized record type
When reading an spss file, I get the following message:
Warning message:
../totmorH.sav: Unrecognized record type 7, subtype 13 encountered in system file.
What does it mean? Do I have to worry? The result looks as expected. I do
not have (easy) access to SPSS, so I cannot check exactly that I got what I
should have.
Thanks,
G??ran
And, I'm using R-2.0.1 on Debian testing (from source).
2005 Mar 24
1
Books on survival analysis and R/S
I will be giving a course in survival analysis using R (of course!) for
people who know nothing about the subject (including R), but know basic
statistics. I'm looking for a suitable course book. Therneau & Grambsch
(2000) is an excellent book, but too much for this course. I need somthing
more elementary.
I have a vague memory saying that such books exist, but I cannot find any
for the
2003 May 14
2
Two names of a function
Is it possible to let a function be known under two names without having
two identical copies of the function body?
---
G?ran Brostr?m tel: +46 90 786 5223
Department of Statistics fax: +46 90 786 6614
Ume? University http://www.stat.umu.se/egna/gb/
SE-90187 Ume?, Sweden e-mail: gb at stat.umu.se
2004 Jun 05
3
R-1.9.1 scheduled for June 21
The release of R-1.9.1 is scheduled for Monday, June 21.
Automatic generation of daily alpha releases should start Monday, June
7 and switch to beta status on Monday, June 14.
It would be good if package maintainers could get any planned changes
done as soon as possible, and test their packages carefully against
the alpha/beta releases.
--
O__ ---- Peter Dalgaard Blegdamsvej 3