PCA problem

Agustin Lobo agust at eno.Princeton.EDU
Tue Nov 30 14:47:49 EST 1993

. However, I
> whenever I try to pipe the r.covar output file into
> the eigensystem module using
>       m.eigensystem < inputfile
> I get the error message "This command must be run
> interactively". I also get the same error message
> when I try to pipe directly from r.covar to
> m.eigensystem using
> (echo 3: r.covar map.1,map.2,map.3) | m.eigensystem
> Is there some way of being able to input the (often
> long) covariance matrix into m.eigensystem, without
> having to type in all of the values manually?
> Thanks
> Lesley-Ann Dupigny.

Yes, run r.covar, select the output with your mouse,
 run m.eigensystem interactively,
and paste the covar matrix.

Not too elegant ...


More information about the grass-user mailing list