该数据集中的数据是由鸢尾属植物的三种花——Setosa、Versicolor与Virginica——的测量结果所组成，数据集中共包含150组数据信息，每一类别植物有50组数据。- The data in the dataset is composed of three species of Iris flowers- Setosa, Versicolor and Virginica- consisting of the measurement results, the data set cont

用决策树-回归分析模型来分析鸢尾花数据，训练后最终可以得到模型的准确率(Using decision tree-regression analysis model to analyze iris data, the accuracy of the model can be obtained after training.)