[R] what can we do when R gives no response

[Peng Jiang]

  Hi, Jim
   thanks for your reply, I tried the scripts it still does not give  
any response on my mac.  I have to stop in manually.
  what is your sessionInfo ?  Thanks again.
On 2008-7-3, at 上午10:10, jim holtman wrote:

> I ran you script and it came back in less than 1 second:
>
>> x <- rnbinom(100, mu = 10, size = 10)
>> hdev <- function(par) {
> +     -sum(dnbinom(x, mu = par[1], size = par[2], log = TRUE))
> + }
>> nlminb(c(9, 12), hdev)
> $par
> [1]  9.760001 13.802305
>
> $objective
> [1] 278.9434
>
> $convergence
> [1] 0
>
> $message
> [1] "relative convergence (4)"
>
> $iterations
> [1] 11
>
> $evaluations
> function gradient
>      12       31
>
>>
>
>
>
> On Wed, Jul 2, 2008 at 8:41 PM, Peng Jiang <jp021 at sjtu.edu.cn> wrote:
>> Hi,  dear R experts ,
>> I am new. I met this problem when I am trying to learn how to use
>> the  nlminb() function. I tried the example which the document
>> provides ( as the following code ) and R gives no response . I don't
>> know whether it is running or not and it takes a very long time but
>> still output nothing  so I just close the session window. my question
>> is is there any method that I can see the running status of a R
>> program or what can I do if R gives no response??? thank you in  
>> advance.
>> here is my sessionInfo
>>
>> i386-apple-darwin8.10.1
>>
>> locale:
>> zh_CN.UTF-8/zh_CN.UTF-8/C/C/zh_CN.UTF-8/zh_CN.UTF-8
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>> other attached packages:
>> [1] mclust_3.1-5
>> x <- rnbinom(100, mu = 10, size = 10)
>> hdev <- function(par) {
>>    -sum(dnbinom(x, mu = par[1], size = par[2], log = TRUE))
>> }
>> nlminb(c(9, 12), hdev)
>> -----------------------------------------------
>> Peng Jiang 江鹏 ,Ph.D. Candidate
>> Antai College of Economics & Management
>> 安泰经济管理学院
>> Department of Mathematics
>> 数学系
>> Shanghai Jiaotong University (Minhang Campus)
>> 800 Dongchuan Road
>> 200240 Shanghai
>> P. R. China
>>
>>
>>       [[alternative HTML version deleted]]
>>
>>
>> ______________________________________________
>> R-help at r-project.org 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.
>>
>>
>
>
>
> -- 
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem you are trying to solve?

-----------------------------------------------
Peng Jiang 江鹏 ,Ph.D. Candidate
Antai College of Economics & Management
安泰经济管理学院
Department of Mathematics
数学系
Shanghai Jiaotong University (Minhang Campus)
800 Dongchuan Road
200240 Shanghai
P. R. China