[R] different results from fligner.test

[gaiarrido]

I've made fligner test with the same data, changing the orders of the
variables, and this what i get

> fligner.test(rojos~edadysexo*zona*ano*estacion)

        Fligner-Killeen test of homogeneity of variances

data:  rojos by edadysexo by zona by ano by estacion 
Fligner-Killeen:med chi-squared = 15.7651, df = 2, p-value = 0.0003773

> fligner.test(rojos~ano*edadysexo*zona*estacion)

        Fligner-Killeen test of homogeneity of variances

data:  rojos by ano by edadysexo by zona by estacion 
Fligner-Killeen:med chi-squared = 86.5317, df = 3, p-value < 2.2e-16

Different results with the same variables!!! Why? i try to find an answer,
but i really surprised

-----
Mario Garrido Escudero
PhD student
Dpto. de Biología Animal, Ecología, Parasitología, Edafología y Qca. Agrícola
Universidad de Salamanca
--
View this message in context: http://r.789695.n4.nabble.com/different-results-from-fligner-test-tp4283312p4283312.html
Sent from the R help mailing list archive at Nabble.com.