To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=91269 Issue #|91269 Summary|Normsdist tail calculation different from Matlab/Octav |e/Excel/Gnumeric Component|Spreadsheet Version|1.0.0 Platform|All URL| OS/Version|All Status|UNCONFIRMED Status whiteboard| Keywords| Resolution| Issue type|DEFECT Priority|P3 Subcomponent|code Assigned to|spreadsheet Reported by|rmcd
------- Additional comments from [EMAIL PROTECTED] Tue Jul 1 14:22:26 +0000 2008 ------- Calc's Normsdist function gives different extreme tail values than Matlab, Excel, Octave, and Gnumeric. Here is how all five programs compute the equivalent value: Software Function Value % diff vs. Gnumeric Gnumeric 1.6.3 Normsdist(-5.5) 1.89895624658877E-08 0.0000E+00 Matlab 2006b Normcdf(-5.5) 1.89895624658877E-08 0.0000E+00 Excel 2007 Normsdist(-5.5) 1.89895624780334E-08 6.3960E-10 Octave 3.0.1 Normcdf(-5.5) 1.89895624780334E-08 6.3960E-10 Calc 2.4.1/3.0 Normsdist(-5.5) 1.89901047664698E-08 2.8558E-05 Notice that Gnumeric and Matlab agree exactly, and Excel and Octave agree exactly. Calc is the outlier. In casual tests the differences become apparent for arguments below -4.5. I have listed this as a defect rather than an enhancement because it will prevent my recommending Calc as an Excel replacement for financial calculations. (I encountered this issue in a real calculation and spent a lot of time trying to decide whether I to accept the Excel or Calc result as more accurate.) --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
