> Any suggestions on which scaling method might be preferred for my > application? I think what is happening is that some of the > coefficients are for all practical purposes effectively 0. These > "effective zeroes" are being represented in the matrix as some very > small number, e.g. 7.2134e-32, whereas the other entries are of a > common everyday size like 8.2, or 0.34. Which scaling method would be > preferred for handling this situation? > > -- Glenn
Hello Glenn, I added a page to the wikibook: http://en.wikibooks.org/wiki/GLPK/Scaling If some very small coefficients (e.g. 7.2134e-32) can safely be replaced by zero do not enter them into the matrix at all. I would suggest GLP_SF_AUTO as a starting point for scaling. If all coefficients are between .1 and 10, scaling will be skipped by this setting. Best regards Xypron -- GMX DSL Doppel-Flat ab 19,99 Euro/mtl.! Jetzt mit gratis Handy-Flat! http://portal.gmx.net/de/go/dsl _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
