Displaying 13 results from an estimated 13 matches for "dongchuan".
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yongchuan
2008 Jun 23
3
Simulating Gaussian Mixture Models
...ust, 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 & Management
????????
Department of Mathematics
???
Shanghai Jiaotong University (Minhang Campus)
800 Dongchuan Road
200240 Shanghai
P. R. China
2008 Sep 16
5
How to find the index
...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 University (Minhang Campus)
800 Dongchuan Road
200240 Shanghai
P. R. China
2008 Jun 30
0
Fwd: cannot install the package RMySQL
...gt;
> thanks in advance.
>
> best regards
>
> -----------------------------------------------
> 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
>
-----------------------------------------------
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. C...
2008 Jul 08
1
about EM algorithm
...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
200240 Shanghai
P. R. China
2008 Jul 03
2
what can we do when R gives no response
...-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]]
2008 Jun 24
2
How to solve empty cells in the contingency table?
Hi,Dear all R experts,
I am trying to do the 2-way contingency table analysis by fitting the loglinear models. However, I found my table has several empty cells which are theoretically missing values.I have no idea of how to solve them coz we cannot compute the simulated p-value with zero marginals.Does someone have some suggestions? Please help me out, thanks a lot!
Cheers,
Yan
2008 Jun 27
1
binomial distribution
Hi all,
I am a biological student and need your help in statistics.
I have two sets of binomial distributed numbers: {a1, a2, ..., an} and {b1,
b2, ..., bn}.
How can I get the distribution of the ratios of the two sets of numbers
{a1/b1, a2/b2, ..., an/bn}? Is there a formula to transform the
distributions? Or where I can start if I want to learn necessary techniques?
Thank you a lot!
xiechao
2008 Jun 28
2
String concatenation
Hi,
Is the following function built in somewhere?
concat = function(v) {
res = ""
for (i in 1:length(v))
res = paste(res,v[i],sep="")
res
}
e.g.
> concat(c("12","3","45"))
[1] "12345"
Cheers,
Andy
--
Andy Fugard, Postgraduate Research Student
Psychology (Room F3), The University of Edinburgh,
7 George
2008 Jul 01
2
if one of 4 conditions is not satisfied
I'm trying to do realize the following:
I have 4 condtions.
If all conditions are satisfied I will paste("PASS")
If any of these is not satisfied I will paste("FAIL"). But I have to paste
the corresponding failure.
ifelse is a good solution but for a 2 conditions. Maybe switch or something
like this.
Does anyone have an idea how to do?
Thanks in advance.
Adel
--
View
2008 Jun 18
3
Cluster on both categorical and numerical data
Hello there. Is there any function in R that can do cluster on a set of
data that has both categorical and numerical variables? thanks.
siangli
2013 Nov 22
0
[LLVMdev] PrologEpilogProblems;
...gt; = LD %SP, 36; mem:LD4[FixedStack2]
%S1<def> = LD %SP, 40; mem:LD4[FixedStack1]
%LR<def> = LD %SP, 44; mem:LD4[FixedStack0]
%SP<def> = ADDI %SP, 48
RetLR %V0<imp-use>
can you tell me the problem? Thank you!
Best Regards,
Jiangwei Xu
Shanghai Jiao Tong University
800 Dongchuan Road
Shanghai, 200240
P.R.China
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2008 Jul 05
5
help about random generation of a Normal distribution of several variables
Hello.
Somebody knows how can I generate a set of n random vectors of a
normal distribution of several variables?
For example, I want to generate n=100 random vectors of two dimensions
for a normal with mean c(0,1) and variance matrix:
matrix(c(2,1,1,3),2,2).
Thanks in advance,
Arnau.
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