topic Re: Principal Component Analysis using GIS in Spatial Statistics Questions

Principal Component Analysis using GIS

DeliweNgwezi — Thu, 31 Jan 2013 19:46:25 GMT

Hi,

My name is Deliwe. I would like to find out how does one perform Principal Component Analysis using spatial analyst in ArcGIS. I need to apply this analysis for my research project? Are there any web courses on this type of analysis? I will appreciate your help.
Thanks
Deliwe

Re: Principal Component Analysis using GIS

JeffreyEvans — Fri, 01 Feb 2013 19:01:17 GMT

Deliwe,
PCA, in this context, is primarily used for data reduction and not inference. That is to say, maximize the information content in a stack of images to the first few bands. There is really no "analysis" per se.

Here is a link to performing PCA in ArcGIS. http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z000000pq000000.htm

Re: Principal Component Analysis using GIS

DeliweNgwezi — Fri, 01 Feb 2013 20:19:53 GMT

Hi Jeffrey,

Thank you for the advice and the link, I will check it out.

Deliwe