def plot(self, vmin=None, vmax=None, *args, **kwargs): mean = np.nanmean(self.data, dtype=np.float64) std = np.nanstd(self.data, dtype=np.float64) if vmin is None: vmin = mean - (2.0 * std) if vmax is None: vmax = mean + (2.0 * std) GenericMap.plot(self, vmin=vmin, vmax=vmax, *args, **kwargs) return