Dear all
thank you for the previous answers.
What I was looking was how to sigma or sum from an
equation, and find the b1 and b2 cooficient such as :
Wj= b1* SUM (Yi*exp^(b2*Dij)) where i =
1,2,3,...R
Wj = wage in region j
Yi is Income in region i
Dij is distance between region i and j
Thank you
Regards
Adiwa
____________________________________________________________________________________
Be a better friend, newshound, and
know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/