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5.32. Functions and Lists Write Code Questions

1. Write a function called average_of_num_list that takes in a parameter num_list and returns the average of all the numbers in num_list. For example, average_of_num_list([0, 20.8, 80, 5]) would return 26.45.

   def average_of_num_list(num_list): # write code here ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(average_of_num_list([0]),0,"average_of_num_list([0])") self.assertAlmostEqual(average_of_num_list([0, 20.8, 80, 5]),26.45,2,"average_of_num_list([0, 20.8, 80, 5])") self.assertAlmostEqual(average_of_num_list([0, 15, 13, 14, 7]),9.8,1,"average_of_num_list([0, 15, 13, 14, 7])") self.assertAlmostEqual(average_of_num_list([0, 100, 5, 10]),28.75,2,"average_of_num_list([0, 100, 5, 10])") self.assertAlmostEqual(average_of_num_list([0, 25, 40, -20, -100]),-11.0,1,"average_of_num_list([0, 25, 40, -20, -100])") myTests().main()

   Write a function called average_of_num_list that takes in a parameter num_list and returns the average of all the numbers in num_list. For example, average_of_num_list([0, 20.8, 80, 5]) would return 26.45.

   def average_of_num_list(num_list): return sum(num_list) / len(num_list)

2. Write a function called names that takes in a parameter name_list and returns an alphabetically sorted name_list. For example, names(['Susan', 'Sara', 'Sammy', 'Sarah']) would return ['Sammy', 'Sara', 'Sarah', 'Susan'].

   def names(name_list): # write code here ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(names(['Sally', 'Jimmy', 'Peter', 'Tinkerbell']),['Jimmy', 'Peter', 'Sally', 'Tinkerbell'],"names(['Sally', 'Jimmy', 'Peter', 'Tinkerbell'])") self.assertEqual(names(['Timmy']),['Timmy'],"names(['Timmy'])") self.assertEqual(names(['Susan', 'Sara', 'Sammy', 'Sarah']),['Sammy', 'Sara', 'Sarah', 'Susan'],"names(['Susan', 'Sara', 'Sammy', 'Sarah'])") myTests().main()

3. Write a function called remove_min_value that takes in a parameter num_list and returns a num_list without the minimum value from num_list. For example, remove_min_value([20, 4, 1203, 7482, 3]) would return [20, 4, 1203, 7482].

   def remove_min_value(num_list): # write code here ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(remove_min_value([20, 4, 1203, 7482, 3]),[20, 4, 1203, 7482],"remove_min_value([20, 4, 1203, 7482, 3])") self.assertEqual(remove_min_value([3]),[],"remove_min_value([3])") self.assertEqual(remove_min_value([3, 0, 100]),[3, 100],"remove_min_value([3, 0, 100])") myTests().main()

   Write a function called remove_min_value that takes in a parameter num_list and returns a num_list without the minimum value from num_list. For example, remove_min_value([20, 4, 1203, 7482, 3]) would return [20, 4, 1203, 7482].

   def remove_min_value(num_list): num_list.remove(min(num_list)) return num_list

4. Write a function called range_given_list that takes in a parameter list_of_nums and returns the range (max value - min value) of the values. Try using the sort method and indexing. For example range_given_list([20, 100, 2000, 15, 3, 12]) would return 1997.

   def range_given_list(list_of_nums): # write code here ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(range_given_list([20, 100, 2000, 15, 3, 12]),1997,"range_given_list([20, 100, 2000, 15, 3, 12])") self.assertEqual(range_given_list([20, 100, 2000, 15, 3, 0]),2000,"range_given_list([20, 100, 2000, 15, 3, 0])") self.assertEqual(range_given_list([20, 100, 2000, 15, 3, -12]),2012,"range_given_list([20, 100, 2000, 15, 3, -12])") self.assertEqual(range_given_list([-20, -100, -2000, -15, -3, -12]),1997,"range_given_list([-20, -100, -2000, -15, -3, -12])") self.assertAlmostEqual(range_given_list([20.7, 100.3, 2000.5, 2000.4, 15.7, 3.6, -12.9]),2013.4,1,"range_given_list([20.7, 100.3, 2000.5, 2000.4, 15.7, 3.6, -12.9])") myTests().main()

5. Write a function called remove_indices_after_first_max_value that takes in a parameter num_list and returns a new_num_list with values up to the max value of the list. For example, remove_indices_after_first_max_value([200, 10, 5, 200]) would return [5, 10, 5, 200].

   def remove_indices_after_first_max_value(num_list): # write code here ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(remove_indices_after_first_max_value([200, 10, 5, 200]),[200],"remove_indices_after_first_max_value([200, 10, 5, 200])") self.assertEqual(remove_indices_after_first_max_value([5, 13, 0, -201, 200, 10, 5, 200]),[5, 13, 0, -201, 200],"remove_indices_after_first_max_value([5, 13, 0, -201, 200, 10, 5, 200])") self.assertEqual(remove_indices_after_first_max_value([5.6, 7.9, 11.3, 10, 200.1, 10, 5, 200]),[5.6, 7.9, 11.3, 10, 200.1],"remove_indices_after_first_max_value([5.6, 7.9, 11.3, 10, 200.1, 10, 5, 200])") self.assertEqual(remove_indices_after_first_max_value([100, 10, 5, 200]),[100, 10, 5, 200],"remove_indices_after_first_max_value([100, 10, 5, 200])") myTests().main()

   Write a function called remove_indices_after_first_max_value that takes in a parameter num_list and returns a new_num_list with values up to the max value of the list. For example, remove_indices_after_first_max_value([200, 10, 5, 200]) would return [5, 10, 5, 200].

   def remove_indices_after_first_max_value(num_list): index_value = num_list.index(max(num_list)) + 1 new_num_list = num_list[:index_value] return new_num_list

6. Write a function called transform_and_combine that takes in two parameters, list_one, which must have at least one element, and list_two. Remove the last element from list_one, then reverse the list. Sort list_two, then extend list_two with list_one, and return list_two. Hint: Use list methods (e.g., pop, sort, append, reverse, and extend). For example, transform_and_combine([5, 20, 3, 15, 200, 0, 17], ['Hello', 'Bye', 'How are you?']) would return ['Bye', 'Hello', 'How are you?', 0, 200, 15, 3, 20, 5].

   def transform_and_combine(list_one, list_two): # write code here ==== from unittest.gui import TestCaseGui class myTests(TestCaseGui): def testOne(self): self.assertEqual(transform_and_combine([5, 20, 3, 15, 200, 0, 17], ['Hello', 'Bye', 'How are you?']),['Bye', 'Hello', 'How are you?', 0, 200, 15, 3, 20, 5],"transform_and_combine([5, 20, 3, 15, 200, 0, 17], ['Hello', 'Bye', 'How are you?'])") self.assertEqual(transform_and_combine(['Susan', 'Sara', 'Sammy', 'Sarah'], ['Hello', 'Bye', 'How are you?']),['Bye', 'Hello', 'How are you?', 'Sammy', 'Sara', 'Susan'],"transform_and_combine(['Susan', 'Sara', 'Sammy', 'Sarah'], ['Hello', 'Bye', 'How are you?'])") self.assertEqual(transform_and_combine([5, 13, 0, -201, 200, 10, 5, 200], [200, 10, 5, 200]),[5, 10, 200, 200, 5, 10, 200, -201, 0, 13, 5],"transform_and_combine([5, 13, 0, -201, 200, 10, 5, 200], [200, 10, 5, 200])") self.assertEqual(transform_and_combine([1], [4]),[4],"transform_and_combine([1], [4]") self.assertEqual(transform_and_combine([1], []),[],"transform_and_combine([1], []") myTests().main()

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