Desicion Tress simple code in Python

 import pandas as pd

import numpy as np 

import matplotlib.pyplot as plt 

from sklearn.datasets import load_iris 

from sklearn import tree

clf = tree.DecisionTreeClassifier (random_state=0) 

iris = load_iris()

clf = clf.fit(iris.data, iris.target)

plt.figure (figsize=(15,10)) 

tree.plot_tree (clf,filled=True,precision=3)

plt.show()

Output:-

Note : Run the above program in this link only ,i am not sure if it works in other compliers

https://hub.mybinder.turing.ac.uk/user/ipython-ipython-in-depth-eyy3zsds/notebooks/binder/Index.ipynb