[R-sig-Geo] questions on simulation

[zhijie zhang]

hi,friends
i'm a newer in using R, thank u for your help in advance!
i want to generate some spatial data (normality,non-normality,etc)and
then calculate the Moran's I index, How should i do it , anybody could
give me some hints?
By the way, i have some  spatial data  with latitude/longitude, how
can i calculate the distances among them?
thanks very much!
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Kind Regards,Zhi Jie,Zhang ,PHDDepartment of EpidemiologySchool of
Public HealthFudan UniversityTel:86-21-54237149