[R] Problem with visualization of power of t test

[Etienne Stockhausen]

Dear Richard M. Heiberger,

I've some problems understanding your function. Where is the power visualized? May you give me an example including the following parameter given by 

power.t.test(n = 2, sd = 1, power = 0.5,  sig.level = 0.05, type = "one.sample", alternative = "one.sided")
 
Thanks in advance

Étienne
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