search for: indepvar

Hi, Can someone tell me if it is possible to set the dispersion parameter constant when fitting a negative binomial glm in R? I've looked at the documentation and can't find the appropriate argument to pass. In STATA I can type: nbreg depvar [indepvar...], offset(offset) dispersion(constant). Thank you [[alternative HTML version deleted]]

Hello R-help, According to a research article that covers the topic I'm analyzing, in Stata, a Poisson pseudo-maximum-likelihood (PPML) estimation can be obtained with the command poisson depvar_ij ln(indepvar1_ij) ln(indepvar2_ij) ... ln(indepvarN_ij), robust I looked up Stata help for the command, to understand syntax and such: www.stata.com/help.cgi?poisson Which simply says that the command fits a Poisson regression of depvar on indepvars. However, in my google-searching, I noticed that pseud...

Dear R-helpers, I would appreicate if someone can help me on the transfer parameter in ARIMAX and also see what I am doing is correct. I am using ARIMAX with 2 Exogeneous Variables and 10 years data are as follows: DepVar Period, depVar, IndepVar1 Period, indepVar1, IndepVar2 Period, indepVar2 Jan 1998,708,Jan 1998,495,Jan 1998,245.490 Feb 1998,670,Feb 1998,421.25,Feb 1998,288.170 Mar 1998,642.5,Mar 1998,395,Mar 1998,254.950 Apr 1998,610,Apr 1998,377.5,Apr 1998,230.640 : > (nrowDepVar <- nrow(depVar)) [1] 545 > (nTest <- nInsta...

...nombres de las variables son del tipo: x23 x25 x30, x301 x320, x80. Entonces me da este error: Error in eval(predvars, data, env) : object 'pot24' not found. Debido a que pot24 no existe, ya que de pot23 se brinca a pot30. En Stata es algo muy simple de hacer, solo tengo que especificar gl indepvars "x23-x80" y ya. En R no logro hacerlo. ¿Alguna otra sugerencia? Gracias de antemano. El lun., 3 de jun. de 2019 a la(s) 04:50, Carlos Ortega ( cof en qualityexcellence.es) escribió: > Hola, > > Mira la función "*as.formula()*". > Incluye un ejemplo muy parecido...

...jet : [R] Dispersion parameter in Neg Bin GLM Hi, Can someone tell me if it is possible to set the dispersion parameter constant when fitting a negative binomial glm in R? I've looked at the documentation and can't find the appropriate argument to pass. In STATA I can type: nbreg depvar [indepvar...], offset(offset) dispersion(constant). Thank you [[alternative HTML version deleted]] ______________________________________________ R-help at stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-...

Hola, Quiero especificar una ecuación con varias variables explicativas de una manera eficiente sin necesidad de escribir todas y cada una. Tengo un conjunto de variables (junto con otras) dentro de una base de datos que se llaman pot23 pot311 pot312 pot 316 pot317........... pot80. No necesariamente están secuenciadas. Quisiera saber cómo indicar que incluya todas las variables de pot23 a pot80