DOC remove as_frame to avoide readthedocs install pandas (#90)

Author: MatthewSZhang

examples/plot_pruning.py

@@ -27,10 +27,10 @@
 from sklearn.datasets import load_iris
 from sklearn.linear_model import LogisticRegression
 
-iris = load_iris(as_frame=True)
+iris = load_iris()
 baseline_lr = LogisticRegression(max_iter=1000).fit(iris["data"], iris["target"])
-X_train = iris["data"].values[10:120]
-y_train = iris["target"].values[10:120]
+X_train = iris["data"][10:120]
+y_train = iris["target"][10:120]
 
 # %%
 # Random data pruning