svdpackout.pl

- NAME
- SYNOPSIS
- USGAE
- INPUT

- Required Arguments:

- lav2
- lao2

- Optional Arguments:

- -rowonly
- -format FORM

- Other Options :

- -help
- -version

- OUTPUT
- SYSTEM REQUIREMENTS
- AUTHOR
- COPYRIGHT

# NAME

svdpackout.pl

# SYNOPSIS

Reconstructs a matrix from its singular values and singular vectors created by SVDPack.

# USGAE

svdpackout.pl [OPTIONS] lav2 lao2

# INPUT

## Required Arguments:

### lav2

Binary output file created by SVDPack's las2

### lao2

ASCII output file created by SVDPack's las2

## Optional Arguments:

#### --rowonly

Only the row vectors are reconstructed. By default, svdpackout reconstructs entire matrix.

#### --format FORM

Specifies numeric format for representing output matrix values. Following formats are supported with --format :

iN - Output matrix will contain integer values each occupying N spaces

fM.N - Output matrix will contain real values each occupying total M spaces of which last N digits show fractional part. M spaces for each entry include the decimal point and +/- sign if any.

Default format value is f16.10.

### Other Options :

#### --help

Displays this message.

#### --version

Displays the version information.

# OUTPUT

svdpackout displays a matrix reconstructed from the Singular Triplets created by SVD. By default, entire matrix (product of left and right signular vectors and singular values) is reconstructed. When --rowonly is ON, only the reduced row vectors are built.

# SYSTEM REQUIREMENTS

SVDPACK - http://netlib.org/svdpack/

PDL - http://search.cpan.org/dist/PDL/

# AUTHOR

Amruta Purandare, Ted Pedersen. University of Minnesota at Duluth.

# COPYRIGHT

Copyright (c) 2002-2005,

Amruta Purandare, University of Pittsburgh. amruta@cs.pitt.edu

Ted Pedersen, University of Minnesota, Duluth. tpederse@umn.edu

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to

The Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.