[R] AIC, AICc, and K

[Benjamin M. Osborne]

How can I extract K (number of parameters) from an AIC calculation, both to
report K itself and to calculate AICc?  I'm aware of the conversion from AIC ->
AICc, where AICc = AIC + 2K(K+1)/(n-K-1), but not sure of how K is calculated
or how to extract that value from either an AIC or logLik calculation.

This is probably more of a basic statistics question than an R question, but I
thank you for your help.

-Ben Osborne

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