## Iris Dataset > 最流行和廣泛可用的虹膜花測量和類名數據集。 ### 規則 `| Classes | 3 | | Samples per class | 50 | | Samples total | 150 | | Features per sample | 4 |` ***** ### 加載 要加載`Iris`數據集，請使用： ``` use Phpml\Dataset\Demo\IrisDataset; $dataset = new IrisDataset(); ``` ***** ### 幾個樣本: ``` sepal length,sepal width,petal length,petal width,class 5.1,3.5,1.4,0.2,Iris-setosa 4.9,3.0,1.4,0.2,Iris-setosa 4.7,3.2,1.3,0.2,Iris-setosa 7.0,3.2,4.7,1.4,Iris-versicolor 6.4,3.2,4.5,1.5,Iris-versicolor 6.9,3.1,4.9,1.5,Iris-versicolor 6.3,3.3,6.0,2.5,Iris-virginica 5.8,2.7,5.1,1.9,Iris-virginica 7.1,3.0,5.9,2.1,Iris-virginica 6.3,2.9,5.6,1.8,Iris-virginicacs ```