[Gretl-users] geo data

I have a little feature request inspired by the new geomapping function. Assume a spatial dataset including info from a shape file. Now we can easily produce maps, but to carry out spatial autocorrelation and spatial regression analysis we need a spatial weight matrix. Considering that all the coordinates info is included in the shape files, it would be nice to be able to recover the coordinates of the centroids of the units as an extra pair of variables. Then distance-based spatial weight matrices can be easily constructed by the user with his preferred formula (or using a contributed function taking the series with the coordinates as inputs - I can volunteer for that, it'd be at most 10 lines of code :-) ) bye Stefano ________________________________________________________________________ Stefano Fachin Professore Ordinario di Statistica Economica Dip. di Scienze Statistiche "Sapienza" Università di Roma P.le A. Moro 5 - 00185 Roma - Italia Tel. +39-06-49910834 fax +39-06-49910072 web http://stefanofachin.site.uniroma1.it/ -- ________________________________________________________ Le informazioni contenute in questo messaggio di posta elettronica sono strettamente riservate e indirizzate esclusivamente al destinatario. Si prega di non leggere, fare copia, inoltrare a terzi o conservare tale messaggio se non si è il legittimo destinatario dello stesso. Qualora tale messaggio sia stato ricevuto per errore, si prega di restituirlo al mittente e di cancellarlo permanentemente dal proprio computer. The information contained in this e mail message is strictly confidential and intended for the use of the addressee only.  If you are not the intended recipient, please do not read, copy, forward or store it on your computer. If you have received the message in error, please forward it back to the sender and delete it permanently from your computer system. --