[R] Power curves
murdoch at stats.uwo.ca
Mon Apr 14 12:25:59 CEST 2008
Louisa Hay wrote:
> I am trying to create a power curve to show how the power of a t-test varies depending on the mean. Any ideas how I should go about this?
The pt() function supports a non-centrality parameter, so you can do
this calculation directly.
For other situations where the non-null distribution isn't easy to work
with, there's always simulation. Just simulate a large number of
samples, and compute how many of them are rejected.
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