Bioequivalence and Bioavailability Forum

Do not trust in computers [Bioanalytics]

posted by Ohlbe – France, 2009-01-21 15:03 (5992 d 02:07 ago) – Posting: # 3098
Views: 28,855
(edited on 2009-01-21 23:17)

Dear HS,

Amazing. I fail to reproduce the error in SD calculation in the example you give, using the French version of Excel 2003 I have here. I get the correct value of 1. I'll check with another version of Excel (also French) at home tonight.

Edit: error reproduced at home with the French version of Excel 2000... Shit !

Does Microsoft also call this a "feature", rather than a bug ?

And considering the fact that the bug appears with some sets of data, but not others, validating a spreadsheet by comparison with another software or manual calculation would not be sufficient.

Regards
Ohlbe

Complete thread:

• Excel sheet usage in bioanalytical calculations chbs 2009-01-19 10:35 [Bioanalytics] 
  • do not use excel martin 2009-01-19 11:52
    • do not use excel ? Ohlbe 2009-01-19 23:54
      • Never martin 2009-01-20 14:52
        • Mathematical wizard Helmut 2009-01-20 17:03
          • Do not trust in computers d_labes 2009-01-21 11:00
            • Do not trust in computers Helmut 2009-01-21 13:00
              • Do not trust in computersOhlbe 2009-01-21 14:03
                • Do not trust in Excelence d_labes 2009-01-21 15:42
                • Do not trust in computers Helmut 2009-01-22 02:49
                  • Do not trust in computers Ohlbe 2009-01-22 10:33
              • Even my calculator... Ohlbe 2009-01-22 22:06
                • Even my calculator... Helmut 2009-01-22 23:26
                  • Even my calculator... ElMaestro 2009-01-23 12:12
                    • Even my calculator... Ohlbe 2009-01-24 19:44
          • data exchange format martin 2009-01-21 12:16
            • Raw data (paper vs. electronic) Helmut 2009-01-21 12:31
          • Mathematical wizard - use WinNonlin Tools menu instead SDavis 2009-01-22 11:56
      • Why not use R? Helmut 2009-01-21 01:02
        • Why not use R? ElMaestro 2009-01-22 19:32
        • Why not use R? ElMaestro 2009-01-23 22:45
          • Why not use R? Aceto81 2009-01-26 16:15
            • Why not use R? d_labes 2009-01-26 16:35