Microsoft Office Tutorials and References
In Depth Information
Megaformula Examples
last names. The names are sorted by frequency of occurrence. The megaformula selects random
names such that more frequently occurring names have a higher probability of being selected.
Therefore, if you create a list of random names, they will appear to be somewhat realistic.
(Common names will appear more often than uncommon names.)
Figure 20-7 shows the workbook. Cells B7 and B8 contain values that determine the probability
that the random name is a male as well as the probability that the random name contains a
middle initial. The randomly generated names begin in cell A11.
This workbook, named name generator.xlsx , is available on the companion
CD-ROM.
Figure 20-7: This workbook uses a megaformula to generate realistic random names.
The megaformula is as follows (the workbook uses several names):
=IF(RAND()<=PctMale,INDEX(MaleNames,MATCH(RAND(),
MaleProbability,–1)),INDEX(FemaleNames,MATCH(RAND(),
FemaleProbability,–1)))&IF(RAND()<=PctMiddle,” “&
INDEX(MiddleInitials,MATCH(RAND(),MiddleProbability,–1))&
“.”,””)&” “&INDEX(LastNames,MATCH(RAND(),LastProbability,–1))
 
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