Displaying 20 results from an estimated 21 matches for "d'agostino".
2004 Aug 30
3
D'agostino test
Hi, Does anyone know if the D'agostino test is available with R ?
Alex
2005 Apr 29
0
Anscombe-Glynn, Bonett-Seier, D'Agostino
Dear useRs,
I was searching CRAN for implementation of kurtosis and skewness tests,
and found that there is some kind of lack on it.
So, I have written three functions:
1. Anscombe-Glynn test for kurtosis
2. Bonett-Seier test based on Geary's kurtosis (which is not widely
known, but I was in...
2012 Jan 17
2
net classification improvement?
Greetings,
I have generated several ROC curves and would like to compare the AUCs.
The data are cross sectional and the outcomes are binary. I am testing
which of several models provide the best discrimination. Would it be most
appropriate to report AUC with 95% CI's?
I have been looking in to the "net reclassificat...
2011 Apr 04
0
D'Agostino test
Juraj17 wrote:
>
> Do I have to write my own, or it exists yet? How name has it, or how can I
> use it.
>
Try the R-function search. It return the function you are looking for as the
first match.
Dieter
--
View this message in context: http://r.789695.n4.nabble.com/D-Agostino-test-tp3424952p3425833.html
Se...
2011 Oct 25
1
alternative option in skewness and kurtosis tests?
I have a question about the D'Agostino skewness test and the Anscombe-Glynn
kurtosis test.
agostino.test(x, alternative = c("two.sided", "less", "greater"))
anscombe.test(x, alternative = c("two.sided", "less", "greater"))
The option "alternative" in...
2013 Oct 04
3
Survival
Hola Carlos.
Muchas gracias.
No es exactamente lo que estoy buscando (sería genial ver que alguien tiene un paquete con la prueba de Nam-D'Agostino) pero puedo aprovechar algo de código.
Encontré alguna referencia al test de Gronnesby&Borgan en el paquete stcoxgof de Stata, pero estoy torpe para encontrar algo hecho en R (y me extraña que no haya nada)
Un...
2012 Nov 28
2
NRI or IDI for survival data - Hmisc package
Hi, I am trying to calculate net reclassification improvement (NRI) and Inegrated Discrimination Improvement (IDI) for a survival dataset to compare 2 risk models. It seems that the improveProb() in Hmisc package does this only for binary outcome, while rcorrp.cens() does take survival object, but doesn't output NRI or IDI. Can anyone suggest any other packages tha...
2013 Oct 04
2
Survival
Hola.
Una duda....
Alguien sabe si hay algo hecho en R para comprobar si un modelo de supervivencia está bien calibrado?
(usando las pruebas de Nam-D'Agostino o de Gronnesby & Borgan).
Thnks.
Un Saludo,
_____________________________
Miguel Ángel Rodríguez Muíños
Dirección Xeral de Innovación e Xesti...
2006 May 11
1
Comparing skewness
Hello,
I'd appreciate any ideas on how to compare the skewness of two samples. In
my case, one sample is likely to be roughly normal and the other one
skewed. I could run two D'Agostino tests, but then I'll have to correct for
the family-wise error. What if both samples are skewed? If there are no...
2012 Jul 16
1
Data from Stock and Watson or DAgostino papers?
Hello,
I am interested in looking at the dataset used by Stock and Watson in
their "Macroeconomic Forecasting Using Diffusion Indexes (J. of Business
and Econ. Statistics, April 2002, pp158-161) or the set used by
D'Agostino and Giannone "Comparing Alternative Predictors [...]"(October
2006) in R....
2013 Oct 04
0
Survival
A lo mejor si escribes a los que mantienen la Task-View de R (Survival
Analysius) te pueden dar la clave...:
CRAN Task View: Survival Analysis*Maintainer:*Arthur Allignol and Aurelien
Latouche*Contact:*arthur.allignol at fdm.uni-freiburg.de*Version:*2013-08-09
Y en Stata, como referencia adicional (que puede conducir a algo
equivalente en R):
http://ww...
2008 Jun 12
1
About Mcneil Hanley test for a portion of AUC!
Dear all
I am trying to compare the performances of several methods using the AUC0.1
and
not the whole AUC. (meaning I wanted to compare to AUC's whose x axis only
goes to
0.1 not 1)
I came to know about the Mcneil Hanley test from Bernardo Rangel Tura
and I referred to the original paper for...
2008 Jul 17
1
Comparing differences in AUC from 2 different models
Hi,
I would like to compare differences in AUC from 2 different models, glm and gam for predicting presence / absence. I know that in theory the model with a higher AUC is better, but what I am interested in is if statistically the increase in AUC from the glm model to the gam model is significant. I also read...
2014 Dec 18
1
Samba 4.2 : External authentification and rights access management ?
Hello everyone,
I am looking to replace a file sharing solution, based on webdav, by
samba 4.2.
I?ve just read the technical notes on the wiki but couldyou tell me more
about the technical feasibility of the following:
*1/* Can Samba 4.2 authenticate users through an already set external
LDAP server rather than its own internal user/password database ?
*2/* Is i...
2010 Apr 09
1
Question on implementing Random Forests scoring
So I've been working with Random Forests ( R library is randomForest) and I
curious if Random Forests could be applied to classifying on a real time
basis. For instance lets say I've scored fraud from a group of
transactions. If I want to score any new incoming transactions for fraud
could Random Forests be used in that co...
2007 May 18
0
Fwd: Re: Goodness-of-fit test for gamma distribution?
Thanks Petr. Comments below:
At 03:40 PM 18/05/2007, Petr Klasterecky wrote:
>Sean Connolly napsal(a):
>>Hi all,
>>I am wondering if anyone has written (or knows of) a function that
>>will conduct a goodness-of-fit test for a gamma distribution. I am
>>especially interested in test statistics have some asymptotic
>>parametric distribution that is independent of sample size or
>>values of fitte...
2013 Oct 04
0
Survival
Hola,
No sé si esto te puede valer:
http://denishaine.wordpress.com/2013/06/04/veterinary-epidemiologic-research-modelling-survival-data-semi-parametric-analyses/
Saludos,
Carlos Ortega
www.qualityexcellence.es
2013/10/4 <miguel.angel.rodriguez.muinos@sergas.es>
> Hola.
>
> Una duda....
>
> Alguien s...
2011 Aug 06
1
significance of differences in skew and kurtosis between two groups
Dear R-users,
I am comparing differences in variance, skew, and kurtosis between two groups.
For variance the comparison is easy: just
var.test(group1, group2)
I am using agostino.test() for skew, and anscombe.test() for kurtosis. However, I can't find an equivalent of the F.test or Mood.tes...
2003 Jun 11
1
COX PH models for event histories?
This is a question about the use of the Cox proportional hazards model to analyze event histories.
I am looking at the responses of sympathetic nervous system activity to a stimulus. The activity I observe is a burst that can only occur once per heart beat cycle (e.g., a binary count). Typically bursts occur in 60-80% of the heart cycles * sensory stimuli ca...
2007 Sep 18
3
Cox regression and p-values
Hello,
I might be barking up the wrong tree here, but I want to make sure I
have a full understanding of this. What I would like to know is what
tests are performed to give the p-values for each variable in the table
that is the result of coxph regression when the variables are
categorical only.
More specifically, when expected counts are less than 5 is the Fisher's
exact test used...