lawson_test


lawson_test, a FORTRAN77 code which solves least squares problems, by Charles Lawson, Richard Hanson.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Related Data and Programs:

lawson, a FORTRAN77 code which solves least squares problems, by Charles Lawson, Richard Hanson.

Source Code:

lawson_test1 demonstrates algorithms HFTI and HS1 for solving least squares problems, and algorithm COV for computing the associated covariance matrix.

lawson_test2 demonstrates algorithms HFTI for solving least squares problems, and algorithm COV for computing the associated unscaled covariance matrix.

lawson_test3 demonstrates the use of routine SVDRS to compute the singular value decomposition of a matrix, and to solve a related least squares linear system.

lawson_test4 demonstrates singular value analysis with SVA.

lawson_test5 demonstrates the BNDACC and BNDSOL routines to handle least squares problems with a banded matrix.

lawson_test6 demonstrates the LDP routine.


Last revised on 18 October 2023.