search for: wensui

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]]

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

...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 recommend one, I will really appreciate it if you could point out a good source for learning as well. thank you so much! Have a happy holiday. wensui

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

...gui? 3) do you have experience with ess+emacs on unix with R? Any insight? This will be an experimental use of R in our company. If I can make a successful case out of it, we might be able to use it in a larger scale. So your input and help are highly appreciated. =============================== WenSui Liu Statistical Project Manager ChoicePoint Precision Marketing (http://spaces.msn.com/statcompute/blog)

Dear All, Is there a emacs/xemacs for unix without compiling it? If it is possible, I prefer something that I can use immediately after putting it on the unix server. Is it possible or am I too stupid to ask this kind of question? Thanks for your insight! -- =============================== WenSui Liu ChoicePoint Precision Marketing Phone: 678-893-9457 Email : wensui.liu at choicepoint.com Blog : statcompute.spaces.live.com

I remember in one slide of Prof. Ripley's presentation overhead, he said the most popular data analysis software is excel. So is there any resource or tutorial on this topic? Thank you so much!

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 Cincinnati Children Hospital Medical Center [[alternative HTML version deleted]]

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

I really have headache when I do google search for information about "R". Any tricks or tips? thx.

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

Good morning, dear listers I am wondering how to do string evaluation such that model <- glm(Y ~ [STRING], data = mydata) where STRING <- "x1 + x2 + x3" It is very doable in other language such as SAS. Thank you so much for your insight!

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]]

...uch that Post-Prob of Class j = Prior-Prob of Class j * F(X)j / sum(Prior-Prob of Class i * F(X)i) for i in [1, K] & prediction = sum(prediction for class i * post-prob) for i in [1, K]. However, I am not sure if this is correct. Any insight? Thanks a lot! -- =============================== WenSui Liu Statistical Project Manager ChoicePoint Precision Marketing (http://spaces.msn.com/statcompute/blog)

I like R more than SAS. My job is doing research on clinical trial. But I was told that FDA only accepts the result from SAS. Is that true? TOO BAD. [[alternate HTML version deleted]]

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

Hi R-experts, I have data from four conditions of an experiment. I tried to create four subsets of the data with read.table, for example, read.table("Experiment.csv",subset=(condition=="1")) . I found a similar post in the archive, but the answer to that post was no. Any new ideas about reading subsets of data with read.table? Thanks! Feng [[alternative HTML version

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.

...t, 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 stat.math.ethz.ch] On Behalf Of Wensui Liu > Sent: Wednesday, July 20, 2005 10:56 AM > To: Greg Snow > Cc: r-help at stat.math.ethz.ch > Subject: Re: [R] Is it possible to create highly customized > report in *.xlsformat by using R/S+? > > I appreciate your reply and understand your point completely. > But at...

...However, I was critisized that my understanding is wrong and was also told that the response variable should be Y instead of T in the propensity model at the 1st stage. I am very confused and like to have the opinion of experts like you guys. Any insight will be appreciated. Have a nice weekend! wensui [[alternative HTML version deleted]]