[R] off-topic: better OS for statistical computing

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. __

[R] install packages automatically

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.

[R] sqldf rocks

Man, I love this package and the guy who contributes it! -- === I am dying with the help of too many physicians. - Alexander the Great, on his deathbed === WenSui Liu (http://spaces.msn.com/statcompute/blog

Re: [R] size limitations in R

, reproducible code. -- === I am dying with the help of too many physicians. - Alexander the Great, on his deathbed === WenSui Liu (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch

Re: [R] nnet 10-fold cross-validation

and provide commented, minimal, self-contained, reproducible code. -- === I am dying with the help of too many physicians. - Alexander the Great, on his deathbed === WenSui Liu (http://spaces.msn.com/statcompute/blog

Re: [R] package with roc, sensitivity, specificity, kappa etc

__ 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 A lousy statistician who happens to know

Re: [R] method of rpart when response variable is binary?

@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 A lousy statistician who happens to know a little

Re: [R] Tools For Preparing Data For Analysis

://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) __ R-help@stat.math.ethz.ch

Re: [R] R is not a validated software package..

]] __ 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 A lousy

Re: [R] R is not a validated software package..

, minimal, self-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do

Re: [R] R is not a validated software package..

. __ 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 A lousy statistician who happens to know

Re: [R] Neural Net. in R

]] __ 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 A lousy statistician

Re: [R] Import data from Access

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 A lousy statistician who happens to know a little programming (http

Re: [R] Excel data into R

, self-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] Read SAS data into R

. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ 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

Re: [R] Neural Nets (nnet) - evaluating success rate of predictions

-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] Reasons to Use R

://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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute

Re: [R] Reasons to Use 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 A lousy statistician who happens to know a little

Re: [R] Reasons to Use R [Broadcast]

-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) __ R-help@stat.math.ethz.ch mailing

Re: [R] How to choose the df when using GAM function?

/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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog

Re: [R] Problem dropping rows based on values in a column

}} __ 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 A lousy statistician

Re: [R] Problem dropping rows based on values in a column

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 A lousy statistician who happens to know a little programming (http://spaces.msn.com

[R] 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

[R] any simple way to put comment with multiple lines

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. __ R-help@stat.math.ethz.ch mailing list

Re: [R] plot.randomForest default mtry values

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) __ R-help

Re: [R] read.table for a subset of data

-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] read.table for a subset of data

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) __ R-help

Re: [R] use nnet

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) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

Re: [R] use nnet

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. Here

Re: [R] Extracting text from a character string

]] __ 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

Re: [R] use nnet

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. On 3/9/07, Wensui Liu [EMAIL PROTECTED] wrote: AM, I have a pieice of junk on my blog. Here

Re: [R] Heteroskedastic Time Series

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 A lousy statistician who happens to know a little programming (http://spaces.msn.com

[R] [friday topic]: what exactly is statistical computing

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? __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] [friday topic]: what exactly is statistical computing

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 Sent: Friday, March 02, 2007 9:43 AM To: r-help@stat.math.ethz.ch Subject: [R] [friday topic]: what

Re: [R] Another newbie book recommandation question

/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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog

Re: [R] Help on GAM

@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 A lousy statistician who happens to know a little programming (http

Re: [R] question regression trees

. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ 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

Re: [R] rpart minimum sample size

/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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog

Re: [R] Datamining-package-?

. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ 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

Re: [R] Partial whitening of time series?

, self-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] If you had just one book on R to buy...

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 A lousy statistician who happens to know a little programming (http://spaces.msn.com

Re: [R] Chi-Square test

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) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch

Re: [R] Randomly extract rows from a data frame

/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) __ R-help@stat.math.ethz.ch mailing list https

Re: [R] How to add obj to a list?

]] __ 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

Re: [R] rpart tree node label

code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http

Re: [R] Linking R with Microsoft SQL Server / Client

, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

Re: [R] SQL statements (directly) in R

, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

Re: [R] Help neural network in R

commented, minimal, self-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo

Re: [R] Query about merging two tables

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 A lousy statistician who happens to know a little programming (http://spaces.msn.com

Re: [R] R in Industry

://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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute

Re: [R] rpart

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? On 2/5/07, Aimin Yan [EMAIL PROTECTED] wrote: Hello, I have

Re: [R] Loop with string variable AND customizable summary output

://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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog

Re: [R] question about nnet

-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) __ R-help@stat.math.ethz.ch mailing list

Re: [R] nnet question

__ 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 A lousy statistician who happens to know a little

Re: [R] comparing random forests and classification trees

commented, minimal, self-contained, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo

[R] how to create daily / weekly ts object?

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. __ R-help@stat.math.ethz.ch mailing list

Re: [R] New to R

, reproducible code. -- WenSui Liu A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog) __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http

Re: [R] OT: any recommendation for scripting language

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, which scripting language is worth

Re: [R] how to transform string to variable name in a fuction?

/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 A lousy statistician who happens to know a little programming (http://spaces.msn.com/statcompute/blog

[R] 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

Re: [R] X-fold cross validation function for discriminant analysis

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 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch

Re: [R] Comparison between GARCH and ARMA

}} __ 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.com/statcompute

Re: [R] Automatic File Reading [Broadcast]

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(file,

Re: [R] R gams

/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.com/statcompute/blog) Senior Decision Support Analyst Cincinnati Children Hospital Medical

Re: [R] how to convert multiple dummy variables to 1 factor variable?

: 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 wondering how to convert multiple dummy variables to 1 factor variable. Thanks. wensui I

[R] 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 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

[R] RODBC problem

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. __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] Automatic File Reading

, minimal, self-contained, reproducible code. -- WenSui Liu (http://spaces.msn.com/statcompute/blog) Senior Decision Support Analyst Cincinnati Children Hospital Medical Center __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman

Re: [R] Question about merge()

] __ 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

Re: [R] Data frames questions

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 RANDOM

Re: [R] Problem with rpart

-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.com/statcompute/blog) Senior

[R] 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

Re: [R] how to rescale the limits of yaxis rather than using the data range by default?

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. On 9/16/06, Wensui Liu [EMAIL PROTECTED] wrote

Re: [R] Table manipulation question

://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.com/statcompute/blog) Senior Decision Support Analyst Health Policy

Re: [R] R-question

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 Cincinnati Children Hospital Medical Center

Re: [R] R-question

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: For your 1st question

Re: [R] variables in object names

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 Health Policy and Clinical Effectiveness Cincinnati Children Hospital Medical

[R] 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]]

[R] 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]] __ R-help@stat.math.ethz.ch mailing list

[R] how to create many objects with sequencial names?

Dear Lister, Is there a way to create many objects with sequencial names, say lm1, lm2...lm100? Thanks. __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

Re: [R] how to create many objects with sequencial names?

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

[R] merge 2 data frame based on more than 2 variables

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

Re: [R] merge 2 data frame based on more than 2 variables

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 more than 2 variables? Thank you so much

Re: [R] lasso for variable selection

-contained, reproducible code. -- WenSui Liu (http://spaces.msn.com/statcompute/blog) Senior Decision Support Analyst Health Policy and Clinical Effectiveness Cincinnati Children Hospital Medical Center [[alternative HTML version deleted

Re: [R] proc standardize data frame x and y

/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.com/statcompute/blog) Senior Decision Support Analyst Health Policy and Clinical Effectiveness

Re: [R] proc standardize data frame x and y

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 Cincinnati Children Hospital Medical Center

Re: [R] How to obtain 95th percentile of a normal distribution of a continuous variable

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.com/statcompute/blog) Senior Decision Support Analyst Health Policy

[R] comparison between parametric and semiparametric models

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

Re: [R] Data Manipulations - Group By equivalent

__ 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 Support Analyst Health Policy

Re: [R] R connectivity to database

- [[alternative HTML version deleted]] __ 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

Re: [R] is there a way to find the best ARIMA model automatically in R?

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 Hospital Medical Center __ R

[R] 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

Re: [R] can R be run without installation on to a computer

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Re: [R] [Q] BIC as a goodness-of-fit stat

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Re: [R] Question about variable selection

://socserv.mcmaster.ca/jfox -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wensui Liu Sent: Saturday, February 18, 2006 2:03 PM To: Liaw, Andy Cc: r-help@stat.math.ethz.ch Subject: Re: [R] Question about variable

Re: [R] How to handle large dataframes?

22 12 Fax: +41 61 270 22 25 [EMAIL PROTECTED] www.unibas.ch/ispmbs __ 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

Re: [R] statistical modelling SAS vs R

__ 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://statcompute.blogspot.com) Senior Decision Support Analyst Health Policy and Clinical Effectiveness

Re: [R] Announce: Contributed Documentation

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Re: [R] Can R handle medium and large size data sets?

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Re: [R] Easy, Robust and Stable GUI???

://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 Clinical Effectiveness Cincinnati Children Hospital Medical Center

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