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-   -   FYI: Matlab/Octave users... (http://book.caltech.edu/bookforum/showthread.php?t=879)

samirbajaj 07-17-2012 06:00 PM

FYI: Matlab/Octave users...
If you're using Matlab or Octave for the Linear Regression exercises, you may already know that it offers a built-in function to compute the pseudo-inverse of a matrix (the "X dagger" in the lectures).

Type 'help pinv' for more information.



dvs79 07-19-2012 08:14 AM

Re: FYI: Matlab/Octave users...
Thanks, samirbajaj.

I don't know if there's any significant saving of computing time, using pinv(x) instead of inv(x'*x)*x', but definitely pinv looks nicer :)

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