Module DBSLS2 in IMSLM

• IMSLM Information

• Components
  • Documentation from ITL
  • Example from ITL

DBSLS2

 
Compute a two-dimensional tensor-product spline approximant using least
squares, returning the tensor product B-spline coefficients.
 
Classes  :  K1a1b . Unconstrained linear least squares approximation on
                  multivariate data (surface fitting)
 
Type     : Fortran subroutine in IMSLM library.
Access   : Proprietary. Many implementations available.
Precision: Double.
 
Usage    : CALL DBSLS2 (NXDATA, XDATA, NYDATA, YDATA, FDATA, LDF, KXORD,
           KYORD, XKNOT, YKNOT, NXCOEF, NYCOEF, XWEIGH, YWEIGH, BSCOEF)
 
Details  : Documentation Example
Sites    : (1) ITL
 

Implementation of DBSLS2 from IMSLM on ITL

 
ITL:       Unix Workstation Network, National Institute of Standards and
           Technology (NIST), Gaithersburg, MD. Available to NIST staff.
 
Precision: Double. (Single: BSLS2)
 
Access available only to NIST staff on internal Unix systems. They may access this
package provided the /itl tree is cross-mounted.
 
   Link         : Login to spruce.nist.gov and see ITL How-To for
                  information on how to setup your environment and link.
   Documentation: cat
                  /home/fetch/Subjects/Math-Stat-Software/imsl/Documentation/dbsls2
   Example      : cat
                  /home/fetch/Subjects/Math-Stat-Software/imsl/Examples/dbsls2