Spset in STATA 15

[Samuel Gamtessa]

I am working on real states sales data. Obviously, there are multiple sales within the same neighbourhood over the years (also in the same year). So, I wanted to ignore the time aspect (I can't have balanced panel to apply spatial econometrics) but spset strictly requires that I xtset my data. I just created id for each observation and tried to spset it (I already have _CX and _CY variables for postal codes, so I do not need a separate shape file). I get:

invalid panel setting
Type xtset to view panel data settings

Sam

[Kevin Crow (StataCorp)]

If you don't want to use any xtset settings with your data type xtset, clear.

[Di Liu (StataCorp)]

You may look at examples in manuls of -spbalance-. Either use -spbalance, balance- to drop some unbalanced time periods, or balancing by dropping spatial units.

I do not think it is good idea to create new ids in your case. It means different ids actually point to the same spatial units, so the inverse-weighting matrix will have some invalid entries as 1 divided by 0.