def plot_influence(self, external=None, alpha=.05, criterion="cooks", size=48, plot_alpha=.75, ax=None, **kwargs): if external is None: external = hasattr(self, '_cache') and 'res_looo' in self._cache from statsmodels.graphics.regressionplots import _influence_plot res = _influence_plot(self.results, self, external=external, alpha=alpha, criterion=criterion, size=size, plot_alpha=plot_alpha, ax=ax, **kwargs) return res