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QCMP037. STEPT:Direct Search Optimization Solution of Least-Squares Fit by J. P. Chandler, Computer Science Department, Oklahoma State University, Stillwater, Oklahoma 74074

Converted by K. J. Tupper, QCPE

No changes have been made in the original code (QCPE 307) except as noted below:

1. The software has been converted into separate programs for each of the subroutines present in the original STEPT package. This has been done to take into consideration the amount of time the entire code would take to compile and the memory constraints of the microcomputer. In order to use the software, one should create the object (.OBJ) files necessary for their particular application and link them.The data file OUTPUT linking the following object files created with the Microsoft FORTRAN Compiler from the FORTRAN programs provided: stept.obj stbeg.obj sterr.obj stset.obj dummy.obj testept.obj

2. The subroutine DATSW is contained in the program DUMMY.FOR. This routine leaves all switches permanently off.

3. Open statements have been included in all of the test programs. The file assigned for output is named OUTPUT, and the status of this file is given as `NEW'. Hence one should be cautious when running programs to ensure that no other files named OUTPUT exist or they will be erased. Two programs (MARQTST.FOR and CURVFIT.FOR) require data input. The input data for these two programs has been stored in MARQDATA and CURVDATA, respectively, and these input files are opened by the test programs with the unit specifier set at 5.

FORTRAN 77 (Microsoft FORTRAN) Lines of Code: 8260



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