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From: | mezger |
Subject: | [Bug-gsl] [bug #27958] bug in gsl_multifit_wlinear_svd when reducing rank |
Date: | Fri, 06 Nov 2009 13:11:51 +0000 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.0.15) Gecko/2009101601 Firefox/3.0.15 (.NET CLR 3.5.30729) |
URL: <http://savannah.gnu.org/bugs/?27958> Summary: bug in gsl_multifit_wlinear_svd when reducing rank Project: GNU Scientific Library Submitted by: mezger Submitted on: Fr 06 Nov 2009 13:11:50 GMT Category: None Severity: 3 - Normal Operating System: sl5 Status: None Assigned to: None Open/Closed: Open Release: 1.9.3 Discussion Lock: Any _______________________________________________________ Details: The introduction of balancing the matrix does not seem to account for a rank reduction. The routine gsl_multifit_wlinear_svd performs well when no rank reduction is taken place. When the rank gets reduced however the results are wrong and when the balancing code is taken out the results are correct. Do I see this correctly and when yes is it possible to correct it ? _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?27958> _______________________________________________ Nachricht geschickt von/durch Savannah http://savannah.gnu.org/
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