Dear (geo_)statisticians in the list:
I'm quite often confused with the requirement of "normal distribution" in
(geo)statistics. My question is: When the normal distribution requirement
MUST be satisfied? Specifically, in which of the following analyses, the
variables MUST follow the normal distribution? If not, what would happen?
Uni-variate analyses:
Outlier detection, Mean calculation, etc.?
Bi-variate analyses:
Correlation; Regression; etc.?
Multi-variate analyses:
Principal component, Cluster, Regression, Factor,
Discriminant, etc.?
Spatial statistics:
Spatial autocorrelation, Spatial outlier, etc.?
Geostatistics:
Variogram, Kriging, Simulation, etc.?
Regards,
Chaosheng Zhang
==========================================
Dr. Chaosheng Zhang
Lecturer in GIS
Department of Geography
National University of Ireland, Galway
IRELAND
Tel: +353-91-524411 ext. 2375
Fax: +353-91-525700
Email: [EMAIL PROTECTED]
Web: http://www.nuigalway.ie/geography/zhang.html
==========================================
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