I know it is pretty old but it seems that nobody answer this question. I
ran into similar problem and the work around I found use the assign
function. Indeed it seems than stepAIC look for the element it needs
within the global environment. So if you define an object inside a
function, you need afterwards to assign this object to the global
environment.
See ?assign
Maybe that can help some people.
--
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Xochitl CORMON
+33 (0)3 21 99 56 84
Doctorante en écologie marine et science halieutique
PhD student in marine ecology and fishery science
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IFREMER
Centre Manche Mer du Nord
150 quai Gambetta
62200 Boulogne-sur-Mer
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