### Software

- Beta versions of Matlab routines for principal component analysis:
beta.tar.gz,
beta.tar.
- Python routines for principal component analysis
("pip install fbpca" also works):
fbpca.py.
- A Fortran software distribution for the low-rank approximation of matrices:
id_dist.4.tar.gz,
id_dist.4.tar.
- Documentation for the above Fortran software
(the above distribution also contains this documentation):
id_doc.4.pdf.
- Matlab tests accompanying the paper,
"Accurate low-rank approximations via a few iterations
of alternating least squares":
als.tar.gz,
als.tar.
- Python tests accompanying the paper,
"Randomized algorithms for distributed computation
of principal component analysis and singular value decomposition":
valid.tar.gz.