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2011 Aug 17
0
vglm regression with weibull distribution
...vis :
In eval(expr, envir, enclos) :
? MLE regularity conditions are violated(shape <= 2) at the final iteration
Then I haved try to apply solution provide in help of the package that consisted to use lschape="logoff" and eschape=list(offset=-2)
regWeib0<-vglm(eqn0,family=weibull(lshape='logoff',eshape=list(offset=-2)),subset(br, fdh<1))
Erreur dans if ((temp <- sum(wz[, 1:M, drop = FALSE] < wzepsilon))) warning(paste(temp,? :
? l'argument n'est pas interpr?table comme une valeur logique
De plus : Message d'avis :
In log(theta + offset) : production...