[R] D'Agostino test

2007-01-22 Thread Matthieu Mourroux
Hello, I'd like to know if the D'Agostino test of normality is reliable, because somme of our results are not really coherent. This test seems to be very sensitive. Even compared to a normal distribution generated by R, the results are not very clear. thanks for any help Matthieu.

[R] Bartlett test

2007-01-19 Thread Matthieu Mourroux
Bonjour, Je voudrais tester l'homoscédasdicité entre des groupes. J'aurais alors aimé savoir quelle était l'hypothèse nulle du test de bartlett. Merci pour votre aide. Matthieu. This e-mail has been scanned for all viruses