Displaying 8 results from an estimated 8 matches for "ordaz".
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2008 Feb 23
1
Aranda-Ordaz
Hi all,
Does anyone know R code or SAS code for Aranda-Ordaz link family?
thanks,
xiao yue
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2009 Oct 23
1
making a plot in xyplot
...m, data=mydata, type="b").
Now I would like to make all the teens' lines one color and the adults' another. Additionally, I'd like to reformat the dots so that the points referencing condition 1 and condition 2 are different. Can you help me with this?
Thanks!
Sarah
Sarah Ordaz
ordazs@upmc.edu<mailto:ordazs@upmc.edu>
Laboratory of Neurocognitive Development
University of Pittsburgh
121 Meyran Avenue
Loeffler Building Rm 113
Pittsburgh, PA 15213
412.383.9972
http://www.wpic.pitt.edu/research/lncd/
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2012 Mar 01
2
User defined link function with extra parameters
Hello R users,
I would like to fit a generalized linear model for the binomial family
with some non standard link functions. For instance, this is the
Aranda-Ordaz link:
? = ln( ( (1 - ?)^-? - 1 )/?)
I know how to define a new link function to use with glm(), but I my
problem is that I have an extra parameter to estimate and I have no clue
how to incorporate that. Is there any way to tell glm() to add this
parameter in the estimation or do I have to writ...
2001 Dec 18
2
Aranda-Ornaz links for binary data
Hi,
I would like apply different link functions from Aranda-Ordaz (1981)
family to large binary dataset (n = 2000). The existing links in glm for
binomial data (logit, probit, cloglog) are not adequate for my data, and I
need to test some other transformations.
Is it possible to do this in R? And how?
Thank you for your help,
/Sharon
++++++++++++++++++++++++...
2010 Mar 16
0
New package: ordinal
...the Laplace approximation and adaptive
Gauss-Hermite quadrature in the location-part of the model.
- a range of standard link functions
- flexible link functions where an extra link function-parameter
bridges the log-log, probit and c-loglog links (log-gamma), and
cloglog and logistic links (Aranda-Ordaz)
- a suite of optimizers including an efficient Newton scheme.
- works for binomial observations (a special case of ordinal data).
- a suite of methods including anova, addterm, dropterm, profile,
confint, plot.profile, predict, in addition to the standard print and
summary methods.
- an important...
2010 Mar 16
0
New package: ordinal
...the Laplace approximation and adaptive
Gauss-Hermite quadrature in the location-part of the model.
- a range of standard link functions
- flexible link functions where an extra link function-parameter
bridges the log-log, probit and c-loglog links (log-gamma), and
cloglog and logistic links (Aranda-Ordaz)
- a suite of optimizers including an efficient Newton scheme.
- works for binomial observations (a special case of ordinal data).
- a suite of methods including anova, addterm, dropterm, profile,
confint, plot.profile, predict, in addition to the standard print and
summary methods.
- an important...
2007 Oct 26
5
help
hello,
please can anyone help me out. Am a new user of R
program. Am having problem
with this code below, not getting the expected
results.
1. Each m, the cumulative sum should be 1.000 but the
2nd and 3rd m returned 2.000 and 3.000
instead of 1.000.
2. to get the LCL(m) and UCL(m) for each m base on
these instructions
if out.cum > 0.025 then LCL(m)= y-1
if out.cum >0.975
2011 Jul 31
5
ajuste de modelos logísticos con heterocedasticidad
Hola a todos.
¿Cómo puedo ajustar un modelo de regresión logística en el que la
varianza de los errores no son iguales, sino que esta puede ser modelada
por otras variables ?
¿Utilizando modelos mixtos o voy desencaminado?
Gracias..