Dear All:
I face the following strange phenomenon concerning the -ranksum- test and -makematrix-.
If I use the following command:
makematrix c1, from(r(z) 2*normprob(-abs(r(z)))) : ranksum exp_fi , by(interne)
It works and I get the following matrix:
c1[1,2]
z 2*normprob(-abs(z))
exp_fi 4.9154637 8.857e-07
When I add two variables, my first variable is not disclosed anymore:
makematrix c2, from(r(z) 2*normprob(-abs(r(z)))) : ranksum exp_fi fonction_ent fonction_exp, by(interne)
c2[3,2]
z 2*normprob(-abs(z))
exp_fi . .
fonction_ent -5.8967476 3.707e-09
fonction_exp 5.8967476 3.707e-09
I know that the last two variables are defined on the basis of the first one. But is this explanation sufficient to understand why the first variable "disappears"? Why couldn't I have the first variable also reported, as it is with the first command?
Best regards
Herv� Stolowy
***********************************************************
Professeur/Professor
Coordinateur du D�partement/Head of Department
HEC Paris
D�partement Comptabilit� Contr�le de gestion / Dept of Accounting and Management Control
1, rue de la Liberation
78351 - Jouy-en-Josas
France
Tel: +33 1 39 67 94 42 - Fax: +33 1 39 67 70 86
[email protected]
http://campus.hec.fr/profs/stolowy/perso/home.htm
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