Hello all!

I am trying to run a mixlogit with a specific restriction on the Standard Deviation of one of my variales, code looks like:

constraint define 1 [SD]Xc = 0
mixlogit Y X1 … Price, rand(Price) constraint(1) ln(1)

And from here I get the error message "When constrainsts are specified it is compilsory to supply starting values using the from option"
From this I understand that I have to basically provide starting values for the betas ... but I would need some help as to how to do that. Do I run a previous model, save the results and somehow command them into the from option? I have seen that you specify values from the matrix of covariates, but I am a bit at loss as to how to do that.

I appreciate the help,

Michael