simpower.hlp.htm

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help for simpower
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ANOVA Power Simulation
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Usage #1

In this usage, you supply the number of groups, the sample
sizes of the groups, the means and the standard deviations.  

  . simpower , groups(#)  n(# #..) mu(# #..) s(# #..) 
              [ reps(#) seed(#) ]

Examples
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The following example performs 1000 ANOVA simulations 
with 2 groups, both groups having an N=10 and sd=3.
  . simpower, groups(2) n(10 10) mu(10 15) s(3 3) 

This example performs 1000 simulations with 3 groups
having Ns of 10 10 and 20 and standard deviations
of 3 6 and 3.
  . simpower, groups(3) n(10 10 20) mu(10 15 12) s(3 6 3) 

Usage #2

  . simpower depvar indvar [, reps(#) ]

With this usage, simanova computes a one way anova of
depvar by indvar.  It uses the sample sizes, means
and standard deviations to peform the power simulation.

Examples
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  . use https://stats.idre.ucla.edu/stat/stata/notes/hsb2
  . simanova science prog
  . simanova science prog, reps(5000)

Acknowledgement
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Adapted from simanova by Michael N. Mitchell

Author
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Philip B. Ender
UCLA Department of Education
UCLA Academic Technology Services
enderatucla.edu