[GRASS-user] Calculating eigen values and % variance explained after PCA analysis

[Wesley Roberts]

Thanks Hamish,

I see that I would need to upgrade to 6.4 using svn. I currently install using synaptic, does this mean I need to compile from source and then add the m.eigensystem addon?

Not sure about f77, is this a fortran compiler? I have gfortran compiler version 4.2.3, will this do?

Thanks
Wesley

>>> Hamish <hamish_b at yahoo.com> 02/25/09 2:07 PM >>>

Nikos wrote:
> There is still m.eigensystem with which one can manually
> build Principal Components and get all values. But I am not
> sure how to compile it (anymore)

works for me.

cd grass-addons/misc/m.eigensystem
make MODULE_TOPDIR=/usr/local/src/grass-svn/releasebranch_6_4


is f77 installed?


Hamish



      



>>> Hamish <hamish_b at yahoo.com> 02/25/09 2:07 PM >>>

Nikos wrote:
> There is still m.eigensystem with which one can manually
> build Principal Components and get all values. But I am not
> sure how to compile it (anymore)

works for me.

cd grass-addons/misc/m.eigensystem
make MODULE_TOPDIR=/usr/local/src/grass-svn/releasebranch_6_4


is f77 installed?


Hamish



      



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