Dada una lista de tuplas, escriba un programa para encontrar el promedio de tuplas similares en la lista.
Ejemplos
Input:
[('Geeks', 10), ('For', 10), ('Geeks', 2), ('For', 9), ('Geeks', 10)]
Output:
Resultant list of tuples: [('For', 9.5), ('Geeks', 7.333333333333333)]
Input:
[('Akshat', 10), ('Garg', 10), ('Akshat', 2), ('Garg', 9), ('Akshat', 10)]
Output:
Resultant list of tuples: [('Akshat', 7.333333333333333), ('Garg', 9.5)]
Método n.º 1: usar la comprensión de listas
# Python code to demonstrate
# find average of similar tuples in list
# initialising list of tuples
ini_list = [('Akshat', 10), ('Garg', 10), ('Akshat', 2),
('Garg', 9), ('Akshat', 10)]
# finding average of similar entries
def avg(l):
return sum(l)/len(l)
result = [(n, avg([v[1] for v in ini_list
if v[0] is n])) for n in set([n[0] for n in ini_list])]
# printing result
print ("Resultant list of tuples: {}".format(result))
Producción:
Resultant list of tuples: [('Akshat', 7.333333333333333), ('Garg', 9.5)]
Método #2: Convertir en diccionario
# Python code to demonstrate
# find average of similar tuples in list
# initialising list of tuples
ini_list = [('Akshat', 10), ('Garg', 10), ('Akshat', 2),
('Garg', 9), ('Akshat', 10)]
# finding average of similar entries
temp_dict = dict()
for tuple in ini_list:
key, val = tuple
temp_dict.setdefault(key, []).append(val)
result = []
for name, values in temp_dict.items():
result.append((name, (sum(values)/len(values))))
# printing result
print("Resultant list of tuples: {}".format(result))
Producción:
Resultant list of tuples: [('Garg', 9.5), ('Akshat', 7.333333333333333)]
Publicación traducida automáticamente
Artículo escrito por manjeet_04 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA