search for: jp021

Displaying 11 results from an estimated 11 matches for "jp021".

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2008 Nov 03
1
a nlm question
...n't know why ,can anybody give me some hints ?? thanks in advance. regards . _______________________ Jiang Peng, Ph.D. Candidate Department of mathematics & Antai college of Economics and management Shanghai Jiao Tong University Address: Room 127, #3 Building, Xuhui Campus E-mail: jp021 at sjtu.edu.cn jp021 at 126.com MSN: jp021 at hotmail.com iChat: mathfrog at mac.com Mobile: +86-138 168 780 95
2008 Nov 24
6
optimization problem
...can work? I use nlm() but i can't fix the domain of alpha. thanks in advance _______________________ Jiang Peng, Ph.D. Candidate Department of Mathematics & Antai college of Economics and Management Shanghai Jiao Tong University Address: Room 127, #3 Building, Xuhui Campus E-mail: jp021 at sjtu.edu.cn jp021 at 126.com MSN: jp021 at hotmail.com iChat: mathfrog at mac.com Mobile: +86-138 168 780 95
2008 Oct 30
0
a nlm() question
...e is any debug method of R code. i hope somebody can help me out . Thanks in advance. ------------------------ Jiang Peng, Ph.D. Candidate Department of mathematics & Antai college of Economics and management Shanghai Jiao Tong University Address: Room 127, #3 Building, Xuhui Campus E-mail: jp021 at sjtu.edu.cn jp021 at 126.com MSN: jp021 at hotmail.com iChat: mathfrog at mac.com Mobile: +86-138 168 780 95
2008 Sep 16
5
How to find the index
Dear R experts, i have a vector z , i have to do something after z is sorted. how can i find the original index, i.e., before sorting, of a certain element in the sorted vector . thanks in advance regards ----------------------------------------------- Peng Jiang ?? ,Ph.D. Candidate Antai College of Economics & Management ???????? Department of Mathematics ??? Shanghai Jiaotong
2008 Jun 30
0
Fwd: cannot install the package RMySQL
...list but it seems nobody ever encounter this annoying problem and I got no replies. so I am trying to forward it to this list, hope it never bothers. Anyone had the same problem, or what does the warning message mean ? Thank you in advance ! Begin forwarded message: > From: Peng Jiang <jp021@sjtu.edu.cn> > Date: 2008年6月29日 下午11时06分22秒 > To: r-sig-mac@stat.math.ethz.ch > Subject: cannot install the package RMySQL > > Hi, > > I am writing to report the error when installed the package RMySQL. > I tried installing for like 5 times and it gives the following erro...
2009 Mar 27
2
how to quit mailing list
Dear list, I will not use this account later, so i have to quit this list. I don't know how to quit this list, I search the official website and find no answer. thanks very much !! [[alternative HTML version deleted]]
2008 Jul 03
2
what can we do when R gives no response
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
2008 Jun 23
3
Simulating Gaussian Mixture Models
Hi, Is there any package that I can use to simulate the Gaussian Mixture Model , which is a mixture modeling method that is widely used in statistical learning theory. I know there is a mclust, however, I think it is a little bit different from my problem. Thanks very much.. regards. -------------------------- Peng Jiang ?? Ph.D. Candidate Antai College of Economics &
2008 Jun 30
6
Plotting three time series on the same graph
Dear R Users, I would like to plot three time series on the same graph, two axis on the left and one axis on the right. The time series that I am graphing on the left do not share a similar scale: one has a range of 1:100 and the other a range of 25000:70000. How can I display the tick marks for both on the left hand side without superimposing them, i.e. one set of tick marks in black right
2008 Jul 08
1
about EM algorithm
Hi, dear R experts . is there any package contain an universal EM procedure, that is , for arbitrary d.f. , not just the one in mclust . thanks in advance best regards ----------------------------------------------- Peng Jiang ?? ,Ph.D. Candidate Antai College of Economics & Management ???????? Department of Mathematics ??? Shanghai Jiaotong University (Minhang Campus) 800 Dongchuan Road
2009 Mar 27
1
how to quit this mailing list
Hi, I will end this mailbox and start a new one and i want to quit this list. I search the R official website with no answer. thanks in advance [[alternative HTML version deleted]]