Displaying 20 results from an estimated 1000 matches similar to: "Chernoff faces"
2004 Oct 08
1
Chernoff faces
> >>>>> "Kenneth" == Kenneth Cabrera <krcabrer at perseus.unalmed.edu.co> writes:
>
> Kenneth> Hello everybody: Does any one has a function to build Chernoff
> Kenneth> faces?
>
> Many of us don't think it's worth them.
> But we know that opinions differ and gladly incorporate
> (good quality) submissions of source code.
>
2000 Dec 20
1
Partial table.
Hi R users:
Thank you very much for you help, you are very kind.
I am again asking for your help to make a function that returns the
numbers of elements of each category given in another vector.
I mean, I have a vector "x" with several elements (most of them
more that once) and other vector "y" with the elements that I want
to count in the first vector (is not a exhaustive
2000 Dec 14
1
Sort in descending order
Hi R users:
I want to know how can I easily sort in descending order a
whole data frame by one or several variables.
Thank you very much for your help.
Kenneth Cabrera
krcabrer at perseus.unalmed.edu.co
krcabrer at epm.net.co
Universidad Nacional de Colombia, Sede Medell?n
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r-help mailing list -- Read
2001 Jun 07
3
Diag "Hat" matrix
Hi R users:
What is the difference between in the computation of the diag of the
"hat" matrix in:
"lm.influence" and the matrix operations with "solve()" and "t()"?
I mean, this is my X matrix
x1 x2 x3 x4 x5
[1,] 0.297 0.310 0.290 0.220 0.1560
[2,] 0.360 0.390 0.369 0.297 0.2050
[3,] 0.075 0.058 0.047 0.034 0.0230
[4,] 0.114 0.100
2002 Nov 29
2
Obtaining the variable names of a glm object
Is names(model1$coef) what you're looking for?
-----Original Message-----
From: Kenneth Cabrera [mailto:krcabrer at epm.net.co]
Sent: 29 November 2002 10:36
Cc: R-help at stat.math.ethz.ch
Subject: [R] Obtaining the variable names of a glm object
Hi, R users!
Suppose I make a model like this:
2002 Mar 19
3
Re: Problems with rgl package
I also downloaded the rgl package (after reading recent Uwe Ligges' post)
and installed in on my Win2k Pro sp2 machine. It seems to work with no
problems. I ran most of the examples, including the hist3d one, and all of
them worked fine.
A couple of thoughts. I have administrative priviliges on my machine.
Could this possible make a difference. The rgl library uses OpenGL. Is it
a
2002 Nov 06
2
Re: some questions!
Hi,
I'm also cc'ing it to r-help.
On Wed, 6 Nov 2002, Kenneth Cabrera wrote:
> Date: Wed, 06 Nov 2002 10:09:21 -0500
> From: Kenneth Cabrera <krcabrer at perseus.unalmed.edu.co>
> To: kwan022 at stat.auckland.ac.nz
> Subject: some questions!
>
> Hello Dear Ko-Kang Wang:
>
> I am trying to compile R v 1.6.1 .
>
> I am following the
1999 Oct 20
0
Factor Analysis and Chernoff faces
Hi!
I am trying to perform a factor analysis in R, but I couldn't find
it. I looked it up in several libraries, but I didn't find it either.
Could you please tell me how can I do it?
Another query: Does anyone know if I can plot Chernoff faces?
TIA
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r-help mailing list -- Read
2011 May 29
2
Caras de Chernoff
Hola a todos, estoy jugando con las caras de Chernoff de la librería aplpack. La
verdad que se consiguen efectos curiosos. Me preguntaba si me recomendáis alguna
otra implementación para R de estas caras. Y si existe alguna forma de poderlas
usar para más de 15 variables (si no me equivoco así es como viene implementada
la función faces)
Saludos
Fernando
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2002 Aug 12
5
programming in R
I have a probably basic problem concerning the R language.
I will write some small R programs but don't really know how to start. Do I have
to create my files in some editor like emacs or can I write my code in the R
prompt? How to compile the code?
I haven't found any good manual parts about this subject.
regards
A.P
2002 Sep 23
2
R crash with internet2.dll
Hi,
I'm using:
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 1
minor 5.1
year 2002
month 06
day 17
language R
and I would like to apply:
> update.packages()
trying URL
2001 Mar 07
1
XEmacs on Windows
> Linux (?) Windows(?)
I mean in the Windows environment.
> I'm using under linux and the same installation worked for both, emacs and
> xemacs.
> P.J.
I am trying to use on ESS win XEmacs on Windows, but I don't know how to
tell XEmacs that use the ESS, I don't found the .emacs file and the system
don't let me create such a file.
Thank you for your help.
Kenneth
2002 Jul 26
1
Frame o windows result.
This can be accomplished with the front-end "Emacs" / "ESS".
http://cran.r-project.org/doc/FAQ/R-FAQ.html#R%20and%20Emacs
-----Original Message-----
From: Kenneth Cabrera [mailto:krcabrer at perseus.unalmed.edu.co]
Sent: 26 July 2002 15:30
To: r-help at stat.math.ethz.ch
Subject: [R] Frame o windows result.
Helllo Dear R-user!
I want to know how can I open and other text
2002 Apr 11
14
Ordinal categorical data with GLM
Hello All:
I am trying to replicate the results of an example found in Alan
Agresti's "Categorical Data Analysis" on pages 267-269. The example is
one of a 2 x 2 cross-classification table of ordinal counts: job
satisfaction and income.
I am able to get Agresti's results for the independence model (G^2 =
12.03 with df = 9) assuming as he does that the data is nominal, but
2001 Mar 10
1
Bug in qchisq?
Hello developers and users:
My system fails (the computer freezes) when I use the ncp parameter,
with the lower.tail=FALSE option in the qchisq function.
qchisq(0.025,31,ncp=1,lower.tail=FALSE)
Thank you very much for your help.
Kenneth Cabrera
Universidad Nacional de Colombia
ICNE
Sede Medellin
krcabrer at perseus.unalmed.edu.co
PS
I am using:
$platform "i386-pc-mingw32"
2001 Mar 10
0
Re: [R] Bug in qchisq? (PR#875)
Kenneth Cabrera <krcabrer@epm.net.co> writes:
> Hello developers and users:
>
> My system fails (the computer freezes) when I use the ncp parameter,
> with the lower.tail=FALSE option in the qchisq function.
>
> qchisq(0.025,31,ncp=1,lower.tail=FALSE)
Yup, that's a bug. We have in pnchisq.c
48 for (ux = 1.0; pnchisq(ux, n, lambda, lower_tail, log_p) <
2001 Mar 13
0
Re: [R] Bug in qchisq? (PR#875)
>>>>> "PD" == p dalgaard <p.dalgaard@biostat.ku.dk> writes:
PD> Kenneth Cabrera <krcabrer@epm.net.co> writes:
>> Hello developers and users:
>>
>> My system fails (the computer freezes) when I use the ncp parameter,
>> with the lower.tail=FALSE option in the qchisq function.
>>
>>
2000 Feb 23
0
Thank you!
Thank you very much for your help, your fuction runs on R without
any change, and the results are the same that your obtain with Splus,
but there still a small difference.
In SAS
W=0.960439
With your shapiro.wilk.test
W=0.9606107
But the p-values are almost the same.
Thank you very much for your help.
> Here is a function for the Shapiro-wilk test that I obtained from StatLib.
> Using
2002 Jul 26
4
chi square test is not appropriate? but what test is
Hallo all
Suppose I have a summary amount of various colours used in
different areas
colour plastic paint
black 15.5 173.8
brown 6.0 523.2
green 2.5 6.4
red 77.1 237.4
yellow 144.6 77.3
It seems that there are some preferable colours in these two areas
(yellow in plastic, brown an red in paint).
The problem seems to me similar to chi square test but it is
intended for testing counts or
2008 Jul 14
2
Insurance review statistical methods
Hi R users:
I will like to know if somebody works on insurance statistics
(actuarial problems) and had use TRICAST, and can tell me
if with all the R tools it can be build a solution
like TRICAST or similar.
In a word:
Do you think that R has all the statistical tools
(I mean modeling tools) to make a job similar to TRICAST?
Does TRICAST has modeling tools that are not implemented
on R yet?