Hello,

 

I have a matrix that I need to store as a series, but while the sample is t observation the matrix has only t-1 rows, i.e. the first observation is missing. The following works, but I am not sure this is the correct thing to do:

 

Series MySeries = NA|MyMatrix

 

While this works, it triggers the following warning:

 

Warning: generated non-finite values

 

What is the correct way to deal with a missing observation? I would rather not insert a zero.

 

Thanks,

 

Logan