what is the function for calculating model fit is aic appropriate for modeling when the parameters are fitted by least squares rather than mle what is aic fit why is aic suitable for model selection how to find out the fit of a linear model with r what is aic appropriate for mle? how do you compare model fit rnorm function aic which t-sigma is appropriate for the fit of a linear model? if you need to use an aic function what is the best way aic compared to linear model which r function would be used to estimate models? r function nls what is the function nls which condition can an aic fit what is nls used for in r what is nls function what is the purpose of nls function to check model fit when does aic appropriate for model selection