Mahalanobis Distance

[Sandra Kowitz]

Hello,

I try to use the Mahalanobis Distance In STATA. √(xi-xj)'V(x)^-1(xi-xj).
Use use a ordinal regression (logit) with data about Different gender and age of individuals. I need to enter the MD in STATA dir Distance dir example between different age of different People.
I don't know which command I should use.

[Jeph Herrin]

I am not sure I understand your problem, but the solution may lie with -mahapick-, a user written program which calculates Mahalanobis distances. Try -search mahapick-.

hth,
Jeph