Pandas Example – Write a Pandas program to extract the unique sentences from a given column of a given DataFrame

(Python Example for Beginners)

 

Write a Pandas program to extract the unique sentences from a given column of a given DataFrame.

 

Sample Solution:

Python Code :


import pandas as pd
import re as re

df = pd.DataFrame({
    'company_code': ['Abcd','EFGF', 'zefsalf', 'sdfslew', 'zekfsdf'],
    'date_of_sale': ['12/05/2002','16/02/1999','05/09/1998','12/02/2022','15/09/1997'],
    'address': ['9910 Surrey Avenuen9910 Surrey Avenue','92 N. Bishop Avenue','9910 Golden Star Avenue', '102 Dunbar St.n102 Dunbar St.', '17 West Livingston Court']
})

print("Original DataFrame:")
print(df)

def find_unique_sentence(str1):
    result = re.findall(r'(?sm)(^[^rn]+$)(?!.*^1$)', str1)
    return result

df['unique_sentence']=df['address'].apply(lambda st : find_unique_sentence(st))
print("nExtract unique sentences :")
print(df)

Sample Output:

Original DataFrame:
  company_code                   ...                                                   address
0         Abcd                   ...                    9910 Surrey Avenuen9910 Surrey Avenue
1         EFGF                   ...                                       92 N. Bishop Avenue
2      zefsalf                   ...                                   9910 Golden Star Avenue
3      sdfslew                   ...                            102 Dunbar St.n102 Dunbar St.
4      zekfsdf                   ...                                  17 West Livingston Court

[5 rows x 3 columns]

Extract unique sentences :
  company_code             ...                         unique_sentence
0         Abcd             ...                    [9910 Surrey Avenue]
1         EFGF             ...                   [92 N. Bishop Avenue]
2      zefsalf             ...               [9910 Golden Star Avenue]
3      sdfslew             ...                        [102 Dunbar St.]
4      zekfsdf             ...              [17 West Livingston Court]

[5 rows x 4 columns]

 

Pandas Example – Write a Pandas program to extract the unique sentences from a given column of a given DataFrame

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Two Machine Learning Fields

There are two sides to machine learning:

  • Practical Machine Learning:This is about querying databases, cleaning data, writing scripts to transform data and gluing algorithm and libraries together and writing custom code to squeeze reliable answers from data to satisfy difficult and ill defined questions. It’s the mess of reality.
  • Theoretical Machine Learning: This is about math and abstraction and idealized scenarios and limits and beauty and informing what is possible. It is a whole lot neater and cleaner and removed from the mess of reality.
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