import pandas as pd
import numpy as np
from sklearn.datasets import load_iris
iris = load_iris()

data = pd.DataFrame(data= np.c_[iris['data'], iris['target']],
                     columns= iris['feature_names'] + ['target'])

head(data)

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-2-f68d2b2478e8> in <module>()
----> 1 head(data)

NameError: name 'head' is not defined

data.head()

	sepal length (cm)	sepal width (cm)	petal length (cm)	petal width (cm)	target
0	5.1	3.5	1.4	0.2	0.0
1	4.9	3.0	1.4	0.2	0.0
2	4.7	3.2	1.3	0.2	0.0
3	4.6	3.1	1.5	0.2	0.0
4	5.0	3.6	1.4	0.2	0.0