Hi,
You can use R for PCA.
Use the R Commander package to add a GUI. R can be scary at first.
Nicolas
> Le 23 juin 2017 à 11:03, image [via OSGeo.org]
> <[email protected]> a écrit :
>
> Good afternoon,
>
> i'm working on windows with several opensource tools (qgis, otb, grass...),
>
> I generated several OTB texture indices. Now, i want to evaluate the
> information 's redundancy thanks to a Principal Component Analysis.
>
> => Is it possible to do that with some opensource tools (otb? qgis? grass?)
> Moreover, I would like set a mask AND set a spectral subset (in order to
> ignore some indices bands which seems "strange" and not relevant to introduce
> into the process).
>
> Could you throw light for me?
>
> In advance, thank you very much for your help.
>
> Kind regards.
>
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