R help - May 2011 - mlogit error message "Error in X[omitlines, ] <- NA : subscript out of bounds"

Yong,


I saw your post from April 29th about the error message in the mlogit
package, copied below.  I had the same problem, but solved it by omitting
all missing data from my data frame before running mlogit.data().


ex. mydata = na.omit(mydata)


I am posting this to the R help list as well so that an answer to this
question will be documented.


Andrew Miles


I am using the mlogit packages and get a data problem, for which I can't
find any clue from R archive.

code below shows my related code all the way to the error

*
#---------------------------------------------------------------------------
*
mydata <- data.frame(dependent,x,y,z)

mydata$dependent<-as.factor(mydata$dependent)

mldata<-mlogit.data(mydata, varying=NULL, choice="dependent",
shape="wide")

summary(mlogit.1<- mlogit(dependent~1|x+y+z, data = mldata,
reflevel="0"))

"Error in X[omitlines, ] <- NA : subscript out of bounds" ,
*
#---------------------------------------------------------------------------
*

Could anybody kindly tip how can I possibly solve this problem?

Thank you

yong

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