Author: Rolf Tueschen
Date: 11:35:00 09/06/02
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On September 06, 2002 at 14:17:59, Sune Fischer wrote: >On September 06, 2002 at 11:53:13, Robert Hyatt wrote: > >>I have posted the raw data logs, the "cooked data" that I extracted from the >>logs, and the speedup tables (those for Martin last nite). It might be >>interesting to take the cb.c program I also posted and change the speedup >>format to show 3 decimel places (I used 2 as Martin had suggested that would >>be better.) >> >>It would be interesting to run the program with 1, 2 and 3 decimel place >>accuracy, and let everyone look at the three tables and decide which one >>_really_ provides the most useful information. I'll bet everyone likes >>.1 better than .11 because is .01 really significant? Or is it just random >>noise? > >To a numerical scientist (as I'm sure you know) the numbers 1.8 and 1.80 are not >identical, 1.80 is ten times more accurate, and that is a powerful statement in >itself. Excuse me here. I don't buy this. These numbers are _not_ measured numbers but calculated "factors". Now, since a single factor "result" has a restricted meaning and since you want to calculate even further the average your question of accuracy is not that important. Since the average 1.7 is with plus/minus anyway, it wouldn't help much if we would have 1.71 as the average. Or what would you think? Rolf Tueschen >To produce such a number you need to (a) run a larger experiment and do some >statistics to get an average or (b) get some better and probably a lot more >expensive equipment (higher resolution mass-spectrometers, or whatever the >situation may call for), though in this case (a) seems like the only option. > >>I will let someone else run this as I have supplied the raw data and program >>on my ftp machine. that way I can't be accused of biasing the results in any >>way. :) > >That's all you can do, people should be able to reproduce the results under the >same circumstances. > >-S.
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