Displaying 5 results from an estimated 5 matches for "jinrui".
2011 Aug 31
6
Weights using Survreg
Dear R users,
I have been trying to understand what the Weights arguments is doing in the
estimation of the parameters when using the Surreg function.
I looked through the function's code but I am not sure if I got it or not.
For example, if I inclue the Surv function in it:
survreg(Surv(vector, status)~1,weights=vector2,dist="Weibull")
will it try to maximize the likelihood with
2011 Jan 17
0
R-help Digest, Vol 95, Issue 17
...t;known" outcomes.
Beyond this, we get into reparametrizations. Great idea, but far too much work for most of
us, even if we work in the field.
Best,
JN
On 01/17/2011 06:00 AM, r-help-request at r-project.org wrote:
> From: Uwe Ligges <ligges at statistik.tu-dortmund.de>
> To: Jinrui Xu <jinruixu at umich.edu>
> Cc: r-help at r-project.org
> Subject: Re: [R] fgev_error_matrix_singular
2011 Jan 17
0
[Fwd: Re: R-help Digest, Vol 95, Issue 17]
...--------------- Original Message ----------------------------
Subject: Re: R-help Digest, Vol 95, Issue 17
From: "Prof. John C Nash" <nashjc at uottawa.ca>
Date: Mon, 17 January, 2011 1:04 pm
To: r-help at r-project.org
Cc: ligges at statistik.tu-dortmund.de
jinruixu at umich.edu
--------------------------------------------------------------------------
For those issues with optimization methods (optim, optimx, and others) I
see, a good
percentage are because the objective function (or gradient if
user-supplied) is mis-coded.
However, an almost equal number...
2011 Jun 16
1
Fwd: varimp_in_party_package
...;
>
there is a factor with (too) many levels in your data frame `rawinput'.
summary(rawinput)
will tell you which one.
Torsten
> I changed data dimension to 150. The problem still exists. So, I guess there
> are other problems. Please give me some help or hints. Thanks!
>
> jinrui,
>
> ______________________________________________
> 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 c...
2011 Jan 17
2
How to still processing despite bug errors?
....n4.nabble.com/Hausman-Test-tp3220016p3220016.html
> Sent from the R help mailing list archive at Nabble.com.
>
>
>
> ------------------------------
>
> Message: 12
> Date: Sun, 16 Jan 2011 15:10:41 +0100
> From: Uwe Ligges <ligges@statistik.tu-dortmund.de>
> To: Jinrui Xu <jinruixu@umich.edu>
> Cc: r-help@r-project.org
> Subject: Re: [R] fgev_error_matrix_singular
> Message-ID: <4D32FC61.5070606@statistik.tu-dortmund.de>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> See ?try in order to get the automated process g...