Write a NumPy program to extract all the rows to compute the student weight from a given array (student information) where a specific column starts with a given character
- برمجة بايثون
- 2021-09-13
- mhanasmh00489829403
الأجوبة
import numpy as np
np.set_printoptions(linewidth=100)
student = np.array([['01', 'V', 'Debby Pramod', 30.21],
['02', 'V', 'Artemiy Ellie', 29.32],
['03', 'V', 'Baptist Kamal', 31.00],
['04', 'V', 'Lavanya Davide', 30.22],
['05', 'V', 'Fulton Antwan', 30.21],
['06', 'V', 'Euanthe Sandeep', 31.00],
['07', 'V', 'Endzela Sanda', 32.00],
['08', 'V', 'Victoire Waman', 29.21],
['09', 'V', 'Briar Nur', 30.00],
['10', 'V', 'Rose Lykos', 32.00]])
print("Original array:")
print(student)
char='E'
result = student[np.char.startswith(student[:,2], char)]
print("\nTotal weight, where student name starting with",char)
print(np.round(result[:, 3].astype(float).sum(), 2))
char='D'
result = student[np.char.startswith(student[:,2], char)]
print("\nTotal weight, where student name starting with",char)
print(np.round(result[:, 3].astype(float).sum(), 2))
Sample Output:
Original array: [['01' 'V' 'Debby Pramod' '30.21'] ['02' 'V' 'Artemiy Ellie' '29.32'] ['03' 'V' 'Baptist Kamal' '31.0'] ['04' 'V' 'Lavanya Davide' '30.22'] ['05' 'V' 'Fulton Antwan' '30.21'] ['06' 'V' 'Euanthe Sandeep' '31.0'] ['07' 'V' 'Endzela Sanda' '32.0'] ['08' 'V' 'Victoire Waman' '29.21'] ['09' 'V' 'Briar Nur' '30.0'] ['10' 'V' 'Rose Lykos' '32.0']] Total weight, where student name starting with E 63.0 Total weight, where student name starting with D 30.21
أسئلة مشابهة
القوائم الدراسية التي ينتمي لها السؤال