what is aic in r what's aic and extractaic in r? what is the differences between aic and extractaic what is the difference between extract and aic what is the difference between aic and extractaic what is aic in r aic r function what does extractacic mean what is the difference between AIC, and extractAIC what is the difference between aic and extractaic what is the difference between extractaic,aic,and asicac what is the difference between aic and extractaic in r what is the difference between aic and extractaic what is the difference between extractaic and aic? what is the difference between aic and extractaic in r what is difference between aic and extractaic in r what is the difference between extract aic and aic in r what is the difference between extract and aic difference between aic and extractaic what is the difference between aic and extractaic in r