如果“legend_out”设置为“True”，则可以使用“g.u legend”`
属性，它是图形的一部分。Seaborn legend是标准的matplotlib
图例对象。因此，您可以更改图例文本，例如：
import seaborn as snstips = sns.load_dataset("tips")g = sns.lmplot(x="total_bill", y="tip", hue="smoker", data=tips, markers=["o", "x"], legend_out = True)# titlenew_title = 'My title'g._legend.set_title(new_title)# replace labelsnew_labels = ['label 1', 'label 2']for t, l in zip(g._legend.texts, new_labels): t.set_text(l)sns.plt.show()另一种情况是如果将“legend”设置为“False”。你必须定义
轴有一个图例（在下面的示例中，轴编号为0）：
import seaborn as snstips = sns.load_dataset("tips")g = sns.lmplot(x="total_bill", y="tip", hue="smoker", data=tips, markers=["o", "x"], legend_out = False)# check axes and find which is have legendleg = g.axes.flat[0].get_legend()new_title = 'My title'leg.set_title(new_title)new_labels = ['label 1', 'label 2']for t, l in zip(leg.texts, new_labels): t.set_text(l)sns.plt.show()此外，您可以结合两种情况使用以下代码：
import seaborn as snstips = sns.load_dataset("tips")g = sns.lmplot(x="total_bill", y="tip", hue="smoker", data=tips, markers=["o", "x"], legend_out = True)# check axes and find which is have legendfor ax in g.axes.flat: leg = g.axes.flat[0].get_legend() if not leg is None: break# or legend may be on a figureif leg is None: leg = g._legend# change legend textsnew_title = 'My title'leg.set_title(new_title)new_labels = ['label 1', 'label 2']for t, l in zip(leg.texts, new_labels): t.set_text(l)sns.plt.show()This pre works for any seaborn plot which is based on
Grid
class.
