Displaying 20 results from an estimated 1000 matches similar to: "AW: Query: IRR Confidence Intervals"
2003 Oct 17
1
Query: colouring graph
Hi!
How can I fill with colors a portion of a graph (e.g.: I want fill in red the
area within two confidence intervals)?
Thank you very much
Cristian
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Cristian Pattaro
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Unit of Epidemiology & Medical Statistics
University of Verona
Tel +39 045 8027668
fax +39 045 505357
cristian at biometria.univr.it
2004 Jul 23
4
Reading ASCII files
Dear all,
I need to read an ASCII file with diffent length lines.
This is what is contained in the file gene.txt:
1st line ID description snp_id genotype
2nd line 10003 Low rs152240
3rd line 10003 Moderate rs189011 TC
4th line 10004 Conservative rs152240 GC
5th line 10004 Bad rs154354
6th line 10013 Bad rs152240
7th line 10019 Conservative rs152240 AC
etc...
This is what I would like to obtain
2004 Oct 11
1
File23525
Hi!
After installing R 2.0.0, I have problem with the "help.search" as below:
> help.search("table")
Error in help.search("table") : could not find package 'file23525'
> help.search("mean")
Error in help.search("mean") : could not find package 'file23525'
I have had the same problem with other request...
What is
2004 May 25
5
Histogram
Dear all,
I have a surprising problem with the representation of frequencies in a
histogram.
Consider, for example, the R code:
b<-rnorm(2000,3.5,0.3)
hist(b,freq=F)
When I plotted the histogram, I expected that values in the y-axis (the
probability) varied between 0 and 1. Instead, they varied within the
range 0-1.3.
Have you got any suggestion for obtaining a correct graph with
2005 Aug 04
1
linkage disequilibrium
Dear all,
I'm using the package "Genetics", and I'm interested in the computation of D'
statistics for Linkage Disequilibrium, for which the LD() command has been
realised. Unfortunately I don't find any reference on "how" the D' is computed
by the LD() function. In the package documentation it is generally referred as
"MLE" estimation, but
2004 Mar 17
2
Q: Odds Ratio
Dear all,
is there a automatic method to obtain Odds Ratio estimates and their
confidence intervals from a GLM Logistic model?
Thanks
Cristian
=============================================
Cristian Pattaro
=============================================
Unit of Epidemiology & Medical Statistics
Department of Medicines and Public Health
University of Verona
cristian@biometria.univr.it
2004 May 04
2
Epidemiology Tools
Hi all,
Please help on this. We will be teaching epidemiology using opensource
software. What are R built-in functions or functions in available packages
that are capable of doing these:
a) Logistic regression (glm?)
b) Conditional logistic regression
c) Logistic regression with random effects
d) Beta-binomial regression
e) Poisson regression
f) Weibull regression (eha?)
g) Exponential
2006 May 06
0
Bug solved / Re: irr package exits (PR#8839)
Dear Profs. Ripley & Gamer,
Thanks a lot for your prompt answer and your advice. Indeed, I managed
to track the bug by launching R from the c-shell instead of the Mac GUI.
In that case, after typing
> library(irr)
I obtained the following error message:
> Erreur dans parse(file, n, text, prompt) : syntax error at
> 653: irr.name =3D "R
> Erreur : unable to load R code in
2006 May 16
1
Cannot load irr package
The irr package seems to install correctly:
> install.packages("irr")
trying URL 'http://cran.us.r-project.org/src/contrib/irr_0.61.tar.gz'
Content type 'application/x-tar' length 13848 bytes
opened URL
==================================================
downloaded 13Kb
* Installing *source* package 'irr' ...
** R
** data
** help
>>>
2005 Nov 30
3
calculating IRR (accounting) in R
I am trying to replace a spreadsheet model of a project justification
with an R script.
I can't seem to track down R functions to calculate Internal Rate of
Return and NPV? Am I missing something? NPV doesn't seem so difficult
to calculate (at least for a regular series) but I am struggling to
identify how to solve for IRR in R.
It would be sufficient if it worked for a regular
2007 Jun 11
1
epitools and R 2.5
At work after updating to R 2.5 I get an error using epitab from package
epitools, when at home (R 2.4) I get no error. Could someone help me?
Thanks
Pietro Bulian
Servizio di Onco-Ematologia Clinico-Sperimentale
I.R.C.C.S. Centro di Riferimento Oncologico
Via Franco Gallini 2
33081 Aviano (PN) - Italy
phone: +39 0434 659 412
fax: +39 0434 659 409
e-mail: pbulian at cro.it
(at work)
2010 Aug 03
2
How to extract ICC value from irr package?
Hi, all
There are 62 samples in my data and I tested 3 times for each one, then I
want to use ICC(intraclass correlation) from irr package to test the
consistency among the tests.
*combatexpdata_p[1:62] is the first text results and combatexpdata_p[63:124]
* is the second one and *combatexpdata_p[125:186]* is the third.
Here is the result:
2010 Aug 25
4
Secant Method Convergence (Method to replicate Excel XIRR/IRR)
Hi,
I am new to R, and as a first exercise, I decided to try to implement an XIRR function using the secant method. I did a quick search and saw another posting that used the Bisection method but wanted to see if it was possible using the secant method.
I would input a Cash Flow and Date vector as well as an initial guess. I hardcoded today's initial date so I could do checks in Excel.
2009 Feb 13
1
Write and Load functions from an external file
Hi All,
Would be grateful,if anyone can answer my queries.
I need to share code. For example, if I am working in C/C++, I would put
some function declarations in .h files that you would include. In PHP, I
would create files with the common functions in them and then "include()"
them. So far, I haven't been able to figure out what the standard practice
is in R.
The two options
2006 Nov 10
3
Confidence interval for relative risk
The concrete problem is that I am refereeing
a paper where a confidence interval is
presented for the risk ratio and I do not find
it credible. I show below my attempts to
do this in R. The example is slightly changed
from the authors'.
I can obtain a confidence interval for
the odds ratio from fisher.test of
course
=== fisher.test example ===
> outcome <- matrix(c(500, 0, 500, 8),
2015 Apr 30
2
R CMD check and missing imports from base packages
On Wed, Apr 29, 2015 at 8:12 PM, Paul Gilbert <pgilbert902 at gmail.com> wrote:
>
> As I recall, several packages mask the simulate generic in stats, if you
> are looking for examples.
>
FWIW, here is a list of base* functions masked** by CRAN packages:
https://github.com/gaborcsardi/rfunctions/blob/master/rfunctions.md
Look at the long table in the end. simulate indeed comes up
2015 Apr 30
0
R CMD check and missing imports from base packages
>>>>> G?bor Cs?rdi <csardi.gabor at gmail.com>
>>>>> on Wed, 29 Apr 2015 23:07:09 -0400 writes:
> On Wed, Apr 29, 2015 at 8:12 PM, Paul Gilbert <pgilbert902 at gmail.com> wrote:
>>
>> As I recall, several packages mask the simulate generic in stats, if you
>> are looking for examples.
>>
> FWIW,
2007 Oct 09
3
How to create something between a script and a package
(Before starting: I'm a total R noob so please bear with me in case of
any error or faux pas).
Hi,
For a small project, I'm writing a few simple R functions and calling
them from python (using RPy). I'm sharing the code with a couple of
friends, using a subversion server.
Now, I want something like a package, to be able to share functions
between ourselves. Having read a few package
2006 Dec 04
4
beginning my R-learning
Hello,
I'm just beginning to learn R. What books/online learning modules with
datasets would you suggest?
Thank you!
Best wishes,
Michael
____________________________________
Michael McCulloch
Pine Street Clinic
Pine Street Foundation
124 Pine Street, San Anselmo, CA 94960-2674
tel 415.407.1357
fax 415.485.1065
email: mm at pinest.org
web: www.pinest.org
2007 Jul 31
0
Cox model with interaction
Dear R users,
I am trying to fit a Cox model such as:
Surv(time,event) ~ X1+X1:X2
or
Surv(time,event) ~ X1*X2 -X2,
This code is working with coxph but not with cph (nor with psm), and the error message is:
Error in if (!length(fname) || !any(fname == zname)) { :
missing value where TRUE/FALSE is required
Any idea about the cause of the problem and how to manage it within the Design