Hey all,
I'm trying to run a negative binomial model in R. It runs clean in stata, but in R,
it gives me:
Error: no valid set of coefficients has been found: please supply starting values
In addition: Warning message:
In glm.fitter(x = X, y = Y, w = w, start = start, etastart = etastart, :
fitted rates numerically 0 occurred
Anyone know how to provide starting values to make this run? This model spec does work in
STATA. . .
EXL
--
ERIC LIN
Technology and Operations Management
Harvard Business School
Boston, MA 02163
elin at
hbs.edu