[Unified-mailman] Re:

Mark Drela drela at MIT.EDU
Wed Mar 3 09:49:12 EST 2004


>can we just do one speed instead of three..or at least just one way up for 
>each speed? the amount of data we're processing is huge!!!!

It's fine if the members of your lab team split up the data reduction work
and then share it.  But everyone must reduce SOME of the data, since it's
an important learning exercise.

Use the spreadsheet features as much as possible. 
The same matrix-multiply operations will apply to all data rows,
so the same three formulas for Fx,Fy,Mz, copied appropriately,
will process all average data rows.

The Xess/Excel averaging function ignores blank entries.  
So if you set it up to avarage some generous (say 20) number 
of rows for each alpha,V pair, then it will give the right average 
if you have fewer rows in the target range.

MD




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