Displaying 4 results from an estimated 4 matches for "acin".
Did you mean:
acid
2007 Aug 13
1
GML with tweedie: AIC=NA
...th var.power=0 and link.power=1. These are equal, as
>expected, except the fact that the tweedie output gives me an NA for the AIC.
>Could you help me with this problem?
>Below you can find the two outputs I refer.
>
>Best Wishes;
>
>Catarina
>
> > summary(glm(formula=ACIN~DIST_REF+DIST_H2O+DIST_OST+
> COTA+H2O_SUP+vasa,family=gaussian(link="identity")))
>Call:glm(formula = ACIN ~ DIST_REF + DIST_H2O + DIST_OST + COTA
>+ H2O_SUP + vasa, family = gaussian(link = "identity"))
>Deviance
>Residuals: Min 1Q Media...
2007 Aug 10
0
GLM with tweedie: NA for AIC
...a glm using the tweedie family with var.power=0 and link.power=1. These are equal, as expected, except the fact that the tweedie output gives me an NA for the AIC.
Can anyone help me with this problem?
Below you can find the two outputs I refer.
Best Wishes;
Catarina
> summary(glm(formula=ACIN~DIST_REF+DIST_H2O+DIST_OST+ COTA+H2O_SUP+vasa,family=gaussian(link="identity")))
Call:glm(formula = ACIN ~ DIST_REF + DIST_H2O + DIST_OST + COTA + H2O_SUP + vasa, family = gaussian(link = "identity"))
Deviance Residuals: Min 1Q Median 3Q Max...
2007 Jun 16
1
GLM dist Gamma-links identity and inverse
...amma distribution, and I always get errors ("no valid set of coefficients: please supply starting values") or warnings ("NaNs produced in log(x)") when I use the links identity or inverse, but I don´t get them if I use the log link.
For example:
> summary(step(glm(formula=acin.x~Canais+Hetero+Indrel+Penetra+Ph2o+Pmatorg+Vasa+Aguasup+Prof+Conchdisp+Conchaglom+Ostdisp+Ostaglom+
Rugos+distcanais+distcosta+distsalina+disturbano+distsapal+cota,family=Gamma(link="inverse"))))Start: AIC=9.18acin.x ~ Canais + Hetero + Indrel + Penetra + Ph2o + Pmatorg + Vasa + Agu...
2007 Aug 11
0
DOE and interaction plot general question
...r.power=0 and link.power=1. These are equal, as expected, except the
> fact that the tweedie output gives me an NA for the AIC.
> Can anyone help me with this problem?
> Below you can find the two outputs I refer.
>
> Best Wishes;
>
> Catarina
>
> > summary(glm(formula=ACIN~DIST_REF+DIST_H2O+DIST_OST+
> COTA+H2O_SUP+vasa,family=gaussian(link="identity")))
> Call:glm(formula = ACIN ~ DIST_REF + DIST_H2O + DIST_OST + COTA +
> H2O_SUP + vasa, family = gaussian(link = "identity"))
> Deviance Residuals: Min 1Q Median
> 3...