Dear Listers,
I am a little tired of installing all packages I want every time when
I instill a new version of R.
Say, if I have a list of packages I need to use, is it possible to
tell R to install them all for me automatically rather than I install
them one by one?
Thx.
_
Good morning, everyone,
I am sorry for this off-topic post but think I can get great answer
from this list.
My question is what is the best OS on PC (laptop) for statistical
computing and why.
I really appreciate your insight.
Have a nice day.
__
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Man,
I love this package and the guy who contributes it!
--
===
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=======
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(http://spaces.msn.c
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A lousy stati
p://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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osting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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(http://spaces.msn.com/statcompute/blog)
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ttp://www.nabble.com/Import--data-from-Access-tf3847342.html#a10896743
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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tics Vanderbilt University
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> and provide commented, minimal, self-contained, reproducible code.
>
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(http://spaces.msn.com/statcompute/blog)
t.math.ethz.ch mailing list
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A lousy statistician who happens to know
:
> >
> > http://www.sas.com/corporate/report05/annualreport05.pdf
> >
> > Somebody needs to send SAS a copy of Tufte or Cleveland.
> >
> > I have to go and rest my eyes now... ;-)
> >
> > Regards,
> >
> > Marc
&g
ap and datasets
> only medium sized it did not compete well, I guess it was just a bit too
> ahead of its time.
>
> Hope this helps,
>
>
>
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> [EMAIL PROTECTED]
> (801) 408-81
; and provide commented, minimal, self-contained, reproducible code.
> >
> >
> >
>
>
> --
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A lous
> (Fax) 410-605-7913 (Please call phone number above prior to faxing)
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A lousy statist
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
Dear Lister,
I understand I can put '#' to put comment line by line. But is there a
way to put comment with multiple lines without having to put '#' on
the every line?
Thanks.
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t; +1 513 646 9390
>
> What is the problem you are trying to solve?
>
> [[alternative HTML version deleted]]
>
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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WenSui Liu
A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
>
> thanks,
>
> Aimin Yan
>
>
> At 12:39 PM 3/9/2007, Wensui Liu wrote:
> >AM,
> >Sorry. please ignore the top box in the code. It is not actually a cv
> >validation but just a simple split-sample validation.
> >sorry for confusion.
> >
> >O
the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
__
AM,
Sorry. please ignore the top box in the code. It is not actually a cv
validation but just a simple split-sample validation.
sorry for confusion.
On 3/9/07, Wensui Liu <[EMAIL PROTECTED]> wrote:
> AM,
> I have a pieice of junk on my blog
this before?
> thanks,
>
> Aimin
>
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and Stats
> Heriot Watt University
>
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is ready to use.
>
> I have seen you on this list for a while. You already know all this. I
> am not sure why you are asking this question.
>
> Roger
>
> -Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Wensui Liu
> Se
Dear List,
on www.r-project.org, the title says 'The R Project for Statistical Computing'.
but what exactly is the definition of statistical computing?
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PLEASE do read
Health
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the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
__
gt; __
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&g
the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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>
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p
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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> Julien
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gt; PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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A lousy statistician who happens to know a little
ide.html
> and provide commented, minimal, self-contained, reproducible code.
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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uide.html
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(http://spaces.msn.com/statcompute/blog)
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EASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
_
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/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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WenSui Liu
A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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a
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&
ate MSE and CC as
> prediction accuracy measure.
> Someone told me I should not trust one tree and should do bagging.
> Is this correct?
> Aimin
>
> At 03:11 PM 2/5/2007, Wensui Liu wrote:
> >are you sure you are using the same setting, tree size, and so on?
> >
>
mented, minimal, self-contained, reproducible code.
>
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
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time).
>
> In alternative, if I was able to see it, I could modify the source code of
> the function "summary", but I am not able to see its (line by line) code. Any
> idea?
>
> Or may be a customizable regression output already exists?
>
> Thanks really a lot!
>
> Carlo
>
> _
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A lousy statistician who happ
0 0
> 149.09400 inward TRUE
>
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> an
Dear All,
Monthly and Quarterly ts obj. is easy to understand. But I couldn't
find an example in R manual how to create daily or weekly ts object.
Could you please shed some light on it?
I really appreciate it.
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h
fo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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A lousy statistician who happens to know a little programming
(http://spaces.msn.com/statcompute/blog)
please give such an example?
Wish you all have a happy new year!
wensui
On 12/23/06, Wensui Liu <[EMAIL PROTECTED]> wrote:
> 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, whic
that loop is not used as frequently as in
> other script language (e.g. bash, perl). So, If you have any other smart
> means do this more efficiently, please let me know, I would appreciate your
> kindness.
>
> [[alternative HTML version deleted]]
>
> ______
> R-help@stat.m
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 re
ead the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision Support Analyst
Cincinnati Children Hospital Medical Center
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Andy,
First of all, thanks for your solution.
When I test your code, it doesn't work. I am not sure if I miss something.
Here is the code I tested:
flist<-list.files(path = file.path(, "c:\\"),pattern="[.]csv$")
csvlist<-lapply(flist, read.csv, header = TRUE)
Here is the error:
Error in file(fi
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(http://spaces.msn.
:
> On Sun, 2006-10-22 at 09:35 +0200, Peter Dalgaard wrote:
> > Marc Schwartz <[EMAIL PROTECTED]> writes:
> >
> > > On Sat, 2006-10-21 at 21:04 -0400, Wensui Liu wrote:
> > > > Dear Listers,
> > > >
> > > > I am wonderi
Great!
It seems everyone is having fun with R in the weekend afternoon.
Thank you so much, Marc and Peter.
On 10/22/06, Marc Schwartz <[EMAIL PROTECTED]> wrote:
> On Sun, 2006-10-22 at 14:03 -0500, Marc Schwartz wrote:
> > On Sun, 2006-10-22 at 14:37 -0400, Wensui Liu wrote:
>
Dear Listers,
I am wondering how to convert multiple dummy variables to 1 factor variable.
Thanks.
wensui
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In a mdb table, I have a text field with values of 1, 2, When I
use rodbc to read it into R, it becomes numeric. Is it a bug or
something?
Thanks.
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PLEASE do read
514-412-7106
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> 3) How to I "append" to the bottom of a dataframe?
APPEND ROWS ITERATIVELY TO A DATA FRAME
#
# APPEND ROWS ITERATIVELY TO A DATA FRAME #
#
# LOOP FROM 1 TO 10
for(i in 1:10)
{
# SET THE RAND
gt; PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision Support Analyst
Cincinnati Children Hospital Medical Center
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>
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HI, Peter,
It is exactly what I want. Thank you so much!
wensui
On 9/16/06, Peter Konings <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm not sure I understand your question correctly, but does the ylim option
> of plot do what you want?
>
> HTH
> Peter.
>
>
>
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
H
like:
>
> T1$C2=T2$C2[index-expression-to-pullout the matching ones]
>
> Any ideas would be appreciated.
>
> Cheers,
> Geoff Russell
>
> [[alternative HTML version deleted]]
>
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well, Harrell,
I understand sweave or R2html could be a solution.
but please show me their applications in a large business setting. On
the contrary, I can give you many such cases using SAS.
On 9/13/06, Frank E Harrell Jr <[EMAIL PROTECTED]> wrote:
> Wensui Liu wrote:
> &g
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>
>
>
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(http:/
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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]]
_
ier to access since all the data is in a single object. You could
> do it in a loop:
>
> result <- list()
> for(i in 1:100){
> ..computation.
> result[[i]] <- yourResult
> }
>
>
> On 8/26/06, Wensui Liu <[EMAIL PROTECTED]> wrote:
> &
Dear Lister,
Is there a way to create many objects with sequencial names, say lm1,
lm2...lm100?
Thanks.
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PLEASE do read the posting guide http://www.R-project.org/post
Thank you so much Marc.
Your solution is exactly what I am looking for.
Have a nice weekend.
wensui
On 8/26/06, Marc Schwartz <[EMAIL PROTECTED]> wrote:
> On Sat, 2006-08-26 at 13:06 -0400, Wensui Liu wrote:
> > Dear Lister,
> >
> > If I have a list of number, say
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]]
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> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
what if the names are different in 2 data frames?
On 8/14/06, Simon Blomberg <[EMAIL PROTECTED]> wrote:
> Wensui Liu wrote:
> > Dear Lister,
> >
> > I understand merge() can be used to join 2 data frames based on 1 variable.
> > But how about merge based on mor
Dear Lister,
I understand merge() can be used to join 2 data frames based on 1 variable.
But how about merge based on more than 2 variables?
Thank you so much!
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
"age" "age" ...
> ..- attr(*, "dimnames")=List of 2
> .. ..$ : chr "1" "2" "3" "4" ...
> .. ..$ : chr "age" "sex" "bmi" "map" ...
> ..- attr(*, "class")= chr "AsIs
ge" "age" "age" "age" ...
> ..- attr(*, "dimnames")=List of 2
> .. ..$ : chr "1" "2" "3" "4" ...
> .. ..$ : chr "age" "sex" "bmi" "map" ...
> ..- attr(*, "class")= chr "A
sting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
Cincinn
_
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
WenSui Liu
(http://spaces.msn
Dear Listers,
I have a question somehow off-topic but think I can find a good answer here.
Using the same dataset, I've built a logistic regression and
generalized additive model. Might I use likelihood ratio test to see
if there is significant improvement in GAM model? Something like:
(deviance
(group by hotel where year = 2005, avg
> occupancy) - how is this done in R? (in R language not SQL). Thx!
>
> -zubin
>
> __
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read t
t
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
Cincinnati Children
> R-help@stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
>
--
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
Senior Decision S
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
man/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
--
WenSui Liu
(http://statcompute.blogspot.com)
Senior Decision Support Analyst
Health Policy and Clinical Effectiveness
Cincinnati Children Hospital Medical Center
math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html
>
--
WenSui Liu
(http://statcompute.blogspot.com)
Senior Decision Support Analyst
Health Policy and Clini
ogy
> McMaster University
> Hamilton, Ontario
> Canada L8S 4M4
> 905-525-9140x23604
> http://socserv.mcmaster.ca/jfox
>
>
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Wensui Li
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