Exercise: Get number of unique values
Get the number of unique observations in the 'Industry' column. Hint: Use the
unique() function to get all the different values, and then count them to see how many there are.import pandas as pd
df = pd.read_csv('/data/companies.csv')
# get number of unique values of 'Industry' column
num_unique =
print(num_unique)
Python
Setting up Python environment... Output