When it is required to print the row of a specific length from a matrix, list comprehension is used.ExampleBelow is a demonstration of the samemy_list = [[22, 4, 63, 7], [24, 4, 85], [95], [2, 55, 4, 7, 91], [5, 31, 1]] print("The list is :") print(my_list) my_key ... Read More

When it is required to print a specific number of rows with the maximum sum, the ‘sorted’ method, and the ‘lambda’ method are used.ExampleBelow is a demonstration of the samemy_list = [[2, 4, 6, 7], [2, 4, 8], [45], [1, 3, 5, 6], [8, 2, 1]] print("The list is ... Read More

When it is required to sort matrix based on palindrome count, a method is defined that takes a list as parameter. It uses the list comprehension and ‘join’ method to iterate and see if an element is a palindrome or not. Based on this, results are determined and displayed.ExampleBelow is ... Read More

When it is required to extract rows with complex data types, the ‘isinstance’ method and list comprehension are used.ExampleBelow is a demonstration of the samemy_list = [[13, 1, 35], [23, [44, 54], 85], [66], [75, (81, 2), 29, 7]] my_result = [row for row in my_list if any(isinstance(element, list) ... Read More

When it is required to return the length of the longest word from a list of words, a method is defined that takes a list as parameter. It checks if an element is in the list and depending on this, the output is displayed.ExampleBelow is a demonstration of the samedef ... Read More

ExampleBelow is a demonstration of the samedef diff_summation_elem(row): return sum([abs(row[index + 1] - row[index]) for index in range(0, len(row) - 1)]) my_list = [[97, 6, 47, 3], [6, 88, 3, 26], [71, 53, 34, 65], [15, 36, 5, 62]] print("The list is : ") print(my_list) ... Read More

When it is required to append given number with every element of the list, a list comprehension is used.ExampleBelow is a demonstration of the samemy_list = [25, 36, 75, 36, 17, 7, 8, 0] print ("The list is :") print(my_list) my_key = 6 my_result = [x + ... Read More

When it is required to get the cumulative row frequencies in a list, the ‘Counter’ method, and a list comprehension are used.ExampleBelow is a demonstration of the samefrom collections import Counter my_list = [[11, 2, 32, 4, 31], [52, 52, 3, 71, 71, 3], [1, 3], [19, 19, 40, ... Read More

When it is required to get the minimum element to construct a string, the ‘set’ operator, the ‘combinations’ method, the ‘issubset’ method and a simple iteration is required.ExampleBelow is a demonstration of the samefrom itertools import combinations my_list = ["python", "is", "fun", "to", "learn"] print("The list is :") ... Read More

To sum all the rows of a DataFrame, use the sum() function and set the axis value as 1. The value axis 1 will add the row values.At first, let us create a DataFrame. We have Opening and Closing Stock columns in itdataFrame = pd.DataFrame({"Opening_Stock": [300, 700, 1200, 1500], "Closing_Stock": ... Read More