Displaying 20 results from an estimated 8000 matches similar to: "how to build a saturated model for logistic regression?"
2011 Apr 02
2
recommendation on r scripting tutorial?
Good morning, dear listers
I am wondering if you could recommend a good tutorial / book for r scripting.
thank you so much in advance!
WenSui Liu
Credit Risk Manager, 53 Bancorp
wensui.liu at 53.com
513-295-4370
2005 Sep 13
3
VB and R
Dear Listers,
Is there any good paper about how to use R together with VB?
Thank you so much!
--
WenSui Liu
(http://statcompute.blogspot.com)
Senior Decision Support Analyst
Cincinnati Children Hospital Medical Center
[[alternative HTML version deleted]]
2007 Nov 08
1
finite mixture model (or latent class)
Dear Listers,
My post might be somewhat OT.
Currently, I am trying to use flexmix to build a finite mixture model.
For instance, I am getting the prior probability and coefficients for
each latent class from training data. Is there a way to get the
posterior probablity and prediction of a new dataset?
What I am thinking is to apply the prior prob and coefficient from
training set to testing data
2006 Aug 27
1
refer to objects with sequential names
Dear Listers,
If I have several glm objects with names glm1, glm2.... and want to apply
new data to these objects. Instead of typing "predict(glm1, newdata)..." 100
times, is there way I could do so in a loop?
Thank you so much!
wensui
[[alternative HTML version deleted]]
2006 Apr 05
1
how to read/write tables in xml
Dear Listers,
I have 2 questions regarding xml.
1) how to read/write tables in xml?
2) compared with csv, is xml a better way to transfer data cross
systems/applications?
Thank you so much for your insight.
--
WenSui Liu
(http://statcompute.blogspot.com)
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
Cincinnati Children Hospital Medical Center
[[alternative HTML
2008 Sep 19
6
how to keep up with R?
Dear Listers,
I've been a big fan of R since graduate school. After working in the
industry for years, I haven't had many opportunities to use R and am mainly
using SAS. However, I am still forcing myself really hard to stay close to R
by reading R-help and books and writing R code by myself for fun. But by and
by, I start realizing I have hard time to keep up with R and am afraid that
I
2006 Sep 16
2
how to rescale the limits of yaxis rather than using the data range by default?
Dear Lister,
plot() is using the data range as the default limits of yaxis. Is
there any way I can change the limits? I just look at the help of
plot() and par() and couldn't find answers.
Thanks.
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
Cincinnati Children Hospital Medical Center
2006 Aug 26
3
for() loop question
Dear Lister,
If I have a list of number, say x<-c(0.1, 0.5, 0.6...), how to use a for()
to loop through each number in x one by one?
Thank you so much!
wensui
[[alternative HTML version deleted]]
2005 Jul 01
1
OT: How to instaill gcc in cygwin?
Dear Listers,
I know it is far off topic. But I do know there must be some people
here who know it very well.
Sorry for bothering others.
Thanks.
--
WenSui Liu, MS MA
Senior Decision Support Analyst
Division of Health Policy and Clinical Effectiveness
Cincinnati Children Hospital Medical Center
2005 Apr 06
7
off-topic question: Latex and R in industries
Latex and R are really cool stuff. I am just wondering how they are
used in industry. But based on my own experience, very rare. Why?
How about the opinion of other listers? Thanks.
2008 Sep 15
1
any package to do generalized linear mixed model?
I checked GlmmML package. However, it can only do binomial and poisson
distribution. How about others such as gamma or neg binomial?
Thank you so much!
wensui
2006 Dec 23
7
OT: any recommendation for scripting language
Right now, I am using SAS and S+/R. As a new year resolution, I am
planning to learn a scripting language.
from statisticians' point of view, which scripting language is worth
to learn, perl, python, or any other recommendation? (Most likely, I
will be learning it in windows.) Since I am not in research, I will
prefer one widely used in industry and related to statistical work.
if you
2007 Mar 21
1
any way to append a table in SQL server
Dear Lister,
Is there an interface in R with SQL server that allows me to append
records to table in the DB? Might I do that using RODBC?
Thanks a lot.
--
WenSui Liu
A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
2009 May 03
2
is there a way to read a specific column from a txt file
Sometimes, it is too costly to read the whole data file into R.
I am looking for solution in scan() and read.Lines() but don't they work.
Thank you so much!
--
==============================
WenSui Liu
Acquisition Risk, Chase
Blog : statcompute.spaces.live.com
Tough Times Never Last. But Tough People Do. - Robert Schuller
2006 Oct 22
1
how to convert multiple dummy variables to 1 factor variable?
Dear Listers,
I am wondering how to convert multiple dummy variables to 1 factor variable.
Thanks.
wensui
2004 Mar 16
2
glm questions --- saturated model
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of David Firth
> Sent: Tuesday, March 16, 2004 1:12 PM
> To: Paul Johnson
> Cc: r-help at r-project.org
> Subject: Re: [R] glm questions
>
>
> Dear Paul
>
> Here are some attempts at your questions. I hope it's of some help.
2008 Jan 22
2
a Q about R in unix
Dear All,
I finally have chance to have R install on our unix server. However,
the system admin asked me if I prefer command-line or gui interface.
I have experience with R on linux before but never use R on unix. Here
are my questions that I need you guys help.
1) is there a good gui for R/unix like we do for windows and mac?
2) if the answer for 1) is yes, which one is better interms of
2005 Jul 20
2
Is it possible to create highly customized report in *.xlsformat by using R/S+?
Your surest bet is to look into S+, not R, since the former does
'integrate' with Microsoft applications. To what extent, I don' know.
This is a desirable feature (IMO) and a reason to use S+ rather then R
(already discussed in different thread).
Try the S+ newsgroup.
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at
2005 Dec 31
2
Q about RSQLite
Happy new year, dear listers,
I have a question about Rsqlite.
when I fetch the data out of sqlite database, there is something like '\r\n'
at the end of last column. Here is the example:
Sepal_Length Sepal_Width Petal_Length Petal_Width Species
1 5.1 3.5 1.4 0.2 setosa\r\n
2 4.9 3.0 1.4 0.2 setosa\r\n
3
2011 Feb 16
1
Saturated model in binomial glm
Hi all,
Could somebody be so kind to explain to me what is the saturated model
on which deviance and degrees of freedom are calculated when fitting a
binomial glm?
Everything makes sense if I fit the model using as response a vector of
proportions or a two-column matrix. But when the response is a factor
and counts are specified via the "weights" argument, I am kind of lost
as far as