Standard Error of the Regression for a model

Phoenix Certara Forums Phoenix WNL basics
1

Hi

I am looking for a goodness of fit measurement for my models. Does Phoenix have Standard Error of the Regression or Residual Standard Error of the Regression this calculation built in? If not what is the simplest way to add this metric as global measure that I would not have to re-code each time I add a new model.

Thanks in advance,

M

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Matthew, I’m not sure I follow your question, the Overall sheet for Maximum-likelihood model has the objective function (-2LL) and also AIC and BIC, whereas theta has CV% for each parameter;

there are the older least squares regression models, both library and custom also available but i would not recommend these as less flexible and powerful than PML used in Maximum-likelihood model

Simon.

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Thanks for the reply.

I am looking to access or implement another measure of “goodness of fit” I understand R^2 is not appropriate for non-linear models so Standard Error of the Regression or Residual Standard Error of the Regression. I understand this is sort of redundant with measures like AIC or BIC, however, this value was requested as well.