Hi R users,
Iwant to run a model, but want to know previously if my data present
homoscedascity:
the model is something like this:
glm(ax~a*b*c*d)
I?ve found four different ways to test for homoscedascity, but i want to
know which is correct:
1.- > fligner.test(glm(x~a*b*c*d))
2.- > fligner.test(x~a*b*c*d)
3.- > fligner.test(x~a,b,c,d)
4.- > interc<-interaction(a,b,c,d)
> fligner.test(x,interc)
Thanks in advance
-----
Mario Garrido Escudero
PhD student
Dpto. de Biolog?a Animal, Ecolog?a, Parasitolog?a, Edafolog?a y Qca. Agr?cola
Universidad de Salamanca
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