def findBestModel(self, models, callback=None):
"""Determine best fit model using SS F-test"""
dset = self.datasets[self.dsindex]
ek = self.E.getDataset(dset)
fitdata,p = Fitting.findBestModel(ek, models=models, silent=True)
best = fitdata['model']
text = 'Best model is %s with p value=%2.2e' %(best,p)
tkMessageBox.showinfo('Best fit model result',text)
return
