About Site Map Submit Contact Us Log in | Create an account
Create an account Log In
Average Rating
User Rating:
Visitors Rating:
My rating:

Write review
See full specifications

scripts default iconLSE (Scripts) Publisher's description

This submission was written by request - as a tool to handle linear least squares problems

This submission was written by request - as a tool to handle linear least squares problems, subject to linear equality constraints that may potentially be rank deficient. (It handles problems with full rank constraints of course too.) In the event of a rank deficient constraint system, it tests for consistency of the constraints.

I added a few other features to LSE:

- It allows multiple right hand sides to the least squares problem, fully vectorized of course.
- Weights may be supplied.
- You are offered a choice of least squares solvers, either backslash or pinv.

LSE solves the problem (for an unknown vector x)

argmin norm(A*x - b)

subject to the constraints

C*x = d

As an example, consider the random system
A = rand(10,3);
b = rand(10,1);

With a rank deficient constraint set
C = [1 1 1;1 1 1];
d = [1;1];

X = lse(A,b,C,d)
X =

Verify that the constraints are satisfied

ans =

Column pivoting is used to eliminate variables from the constraint system when is specified, and when pinv is specified, an svd is used for the final solution.

System Requirements:

MATLAB 7.3 (R2006b)
Program Release Status: New Release
Program Install Support: Install and Uninstall

LSE (Scripts) Tags:

Click on a tag to find related softwares

Is LSE (Scripts) your software?

Manage your software

Most Popular

scripts default icon ASK, OOK, FSK, BPSK, QPSK, 8PSK modulation 1.1
ASK, OOK, FSK, BPSK, QPSK, 8PSK modulation contain several functions for digital modulation simulation
scripts default icon Simulink Communication Labs 1.1
Simulink Communication Labs allows you to learn communication systems in greater depth.
scripts default icon M-QAM modulation and demodulation 1.1
M-QAM modulation and demodulation is the QAM modulation and demodulation tech.
scripts default icon LZW Compression/Decompression 1.1
LZW Compression/Decompression - Updated LZW compressor and decompressor with reasonable performance
scripts default icon InSPIRE utility to plot a 2D displacement field (Scripts) 1.0
This program plots the deformation field (displace vectors) contained in vector.txt.