Displaying 4 results from an estimated 4 matches for "procedues".
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procedures
2004 Jun 11
1
ROC for threshold value, biometrics
Hello,
I am just a beginner of R 1.9.0.
I try to construct a predictive score for the development of liver
cancer in cirrhotic patients. So dependant variable is binanry (cancer
yes or no). Independant variables are biological data. The aim is to
find out a cut-off value which differentiate (theoratically) from
normal to pathological state for each biological data.
How can I step in procedue to
2009 Apr 24
1
the puzzle of eigenvector and eigenvalue
Dear all
I am so glad the R can provide the efficient calculate about
eigenvector and eigenvalue.
However, i have some puzzle about the procedure of eigen.
Fristly, what kind of procedue does the R utilize such that the eigen
are obtained?
For example, A=matrix(c(1,2,4,3),2,2)
we can define the eigenvalue lamda, such as
det | 1-lamda 4 | =0
| 2 3-lamda |
then
2004 Jul 05
4
density(x)
Dear experts,
when trying to estimate an kernel density function with density(x) I get the following
error message with imported data from either EXCEL or text files:
Error in density(spr) : argument must be numeric.
Other procedues such as truehist work. If I generate data within R density works fine.
Does anybody have an idea?
Yours
--
Christoph Hanck
Wissenschaftliche Hilfskraft
Lehrstuhl f??r Empirische Wirtschaftsforschung, Prof. Dr. Wilfling
http://www.wiwi.uni-muenster.de/~05/
WWU Muenster
Tel.: +49-251-83 25043
eMail...
2010 Nov 08
89
Re: DM-CRYPT: Scale to multiple CPUs v3 on 2.6.37-rc* ?
On Sun, Nov 07 2010 at 6:05pm -0500,
Andi Kleen <andi@firstfloor.org> wrote:
> On Sun, Nov 07, 2010 at 10:39:23PM +0100, Milan Broz wrote:
> > On 11/07/2010 08:45 PM, Andi Kleen wrote:
> > >> I read about barrier-problems and data getting to the partition when
> > >> using dm-crypt and several layers so I don''t know if that could be
> >