NumPy: Split a given text into lines and split the single line into array values

NumPy String: Exercise-22 with Solution

Write a NumPy program to split a given text into lines and split the single line into array values.

Sample text:
01 V Debby Pramod
02 V Artemiy Ellie
03 V Baptist Kamal
04 V Lavanya Davide
05 V Fulton Antwan
06 V Euanthe Sandeep
07 V Endzela Sanda
08 V Victoire Waman
09 V Briar Nur
10 V Rose Lykos

Sample Solution:

Python Code:

# Importing necessary library
import numpy as np 

# The string containing student information
student = """01	V	Debby Pramod
02	V	Artemiy Ellie
03	V	Baptist Kamal
04	V	Lavanya Davide
05	V	Fulton Antwan
06	V	Euanthe Sandeep
07	V	Endzela Sanda
08	V	Victoire Waman
09	V	Briar Nur
10	V	Rose Lykos"""

# Displaying the original text
print("Original text:") 
print(student)

# Splitting the text into lines and then further splitting by tab ('\t')
text_lines = student.splitlines()
text_lines = [r.split('\t') for r in text_lines]

# Creating a NumPy array from the split text
result = np.array(text_lines, dtype=np.str)
print("\nArray from the said text:")
print(result) 

Sample Output:

Original text:
01	V	Debby Pramod
02	V	Artemiy Ellie
03	V	Baptist Kamal
04	V	Lavanya Davide
05	V	Fulton Antwan
06	V	Euanthe Sandeep
07	V	Endzela Sanda
08	V	Victoire Waman
09	V	Briar Nur
10	V	Rose Lykos

Array from the said text:
[['01' 'V' 'Debby Pramod']
 ['02' 'V' 'Artemiy Ellie']
 ['03' 'V' 'Baptist Kamal']
 ['04' 'V' 'Lavanya Davide']
 ['05' 'V' 'Fulton Antwan']
 ['06' 'V' 'Euanthe Sandeep']
 ['07' 'V' 'Endzela Sanda']
 ['08' 'V' 'Victoire Waman']
 ['09' 'V' 'Briar Nur']
 ['10' 'V' 'Rose Lykos']]

Explanation:

In the above exercise –

student = """01 V Debby Pramod\n02 V Artemiy Ellie\n03 V Baptist Kamal\n04 V Lavanya Davide\n05 V Fulton Antwan\n06 V Euanthe Sandeep\n07 V Endzela Sanda\n08 V Victoire Waman\n09 V Briar Nur\n10 V Rose Lykos""": This creates a string variable student that contains the information for 10 students. Each line in the string represents a student, and the fields are separated by tabs.

text_lines = student.splitlines(): This line splits the student string into individual lines.

text_lines = [r.split('\t') for r in text_lines]: This line splits each line in text_lines into fields separated by tabs, creating a list of lists.

result = np.array(text_lines, dtype=np.str): This line converts the list of lists into a NumPy array, where each row represents a student and each column represents a field (e.g. ID, class, name). The dtype=np.str parameter sets the data type of the array to string.

Python-Numpy Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a NumPy program to count a given word in each row of a given array of string values.
Next: NumPy: String Exercises Home