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 æ±é¹ ,Ph.D. Candidate Antai College of Economics & Management å®æ³°ç»æµç®¡çå¦é¢ Department of Mathematics æ°å¦ç³» Shanghai Jiaotong University (Minhang Campus) 800 Dongchuan Road 200240 Shanghai P. R. China [[alternative HTML version deleted]]
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