PD Read CSV iloc

Code credit:
https://www.udemy.com/data-analysis-with-pandas/
https://www.udemy.com/machinelearning/ 

dataset = pd.read_csv('name_of.csv')
# iloc [rowstart:rowend,colstart:colend]
X = dataset.iloc[:, :-1].values
y = dataset.iloc[:, 4].values