On 06/02/13 18:49, Rashad M wrote:
Hi All,
i.pca outputs raster bands and the pixel values are transformed
obivously. But anyone can tell me how the transformation works
if a pixel P1 has value X after i.pca it will be Y
Is there any specific math equation that is applied to every pixel by PCA?
http://en.wikipedia.org/wiki/Principal_component_analysis
and
http://grasswiki.osgeo.org/wiki/Principal_Component_Analysis
Moritz
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