Displaying 3 results from an estimated 3 matches for "zinbreg".
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2009 Jul 18
2
Zinb for Non-interger data
...promise I have searched the forum
already, but I'm getting a bit desperate!
I have over-dispersed, zero inflated data, with variance greater than the
mean, suggesting Zero-Inflated Negative Binomial - which I attempted in R
with the pscl package suggested on
http://www.ats.ucla.edu/stat/R/dae/zinbreg.htm
However my data is non-integer with some pesky decimals (i.e. 33.12) and
zinb / pscl doesn't like that - not surprising as zinb is for count data,
normally whole integers etc.
Does anyone know of a different zinb package that will allow non-integers or
and equivalent test/ model to zinb f...
2011 May 23
1
Interpreting the results of the zero inflated negative binomial regression
Hi,
I am new to R and has been depending mostly on the online tutotials to learn
R. I have to deal with zero inflated negative binomial distribution. I am
however unable to understand the following example from this link
http://www.ats.ucla.edu/stat/r/dae/zinbreg.htm
The result gives two blocks.
*library(pscl)
zinb<-zeroinfl(count ~ child + camper | persons, dist = "negbin", EM = TRUE)
summary(zinb)
*Call:
zeroinfl(formula = count ~ child + camper | persons, dist = "negbin",
EM = TRUE)
Count model coefficients (negbin with lo...
2014 Nov 14
3
Cómo aplicar weights a las observaciones en un GLM binomial
Hola, espero ser clara en el mensaje ya que es la primera vez que recurro a
este tipo de ayudas, explico mi duda:
Tengo un dataset con 4505 observaciones en el que la variable dependiente
son presencias (n=97 y clasificadas como 1) y ausencias (n=4408 y
clasificadas como 0). Mi primer paso fue realizar un GLM con una muestra
compensada de ausencias y presencias para la variable dependiente, es