[R] Mlogit missing value problem

[K. Elo]

Hi,

19.12.2011 11:12, Ville Iiskola wrote:
>
> Error in if (abs(x - oldx)<  ftol) { : missing value where TRUE/FALSE
> needed
>
> The reason for this error is in the row 563. There the choice has
> value 1 and Ie has missing value. If the choice has value 0 and Ie
> has missing values, then there is no errors.
>
> What should i do to make it work..?

How about excluding all rows having the combination "choice=1" and 
"Ie=NA" by using the function 'subset'? Or would this destroy/skew your 
data?

HTH,
Kimmo