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Articles by Tapas Kumar Ghosh
Page 13 of 19
Finding the First Even Number in a List using Python
Python has a variety of built-in methods to modify and analyze the text, that contains to find the specific element within them. To solve this problem statement it will use some built-in functions like next(), filter(), and, lambda to find the first even element from the list. The various applications are- data filtering tools, and, content filtering tools. Let’s see how to take the input of the program to get the result: The given list, List_1 = [21, 33, 12, 11, 61, 78] The final result becomes 12 because it is the first even number from the list. Syntax The ...
Read MoreFind the Common Keys from two Dictionaries in Python
The dictionary is one of the four data types in Python that doesn’t allow any key duplicates. In this problem statement, we have to create two dictionaries as user input and check the matches for a common key. If key elements are found as common then it prints the result. This can be possible by using various methods in Python such as type(), items(), set(), etc. Let’s take an example of this: Input: A = { ‘I’: 10, ‘II’: 20, ‘III’: 30, ‘IV’:40 } B = { ‘II’: 40, ‘V’: 60, ‘VI’: 80, ‘I’: 90 } Output: { ‘I’, ‘II’ ...
Read MoreConvert Matrix to Custom Tuple Matrix in Python
In Python, a tuple is one of the four built−in data types that is used to collect the data and this data is represented by round parenthesis i.e.(). Tuple is generally known for multiple collections of items into a single item. In Python, we have some built−in functions like map(), tuple(), and, lambda will be used to Convert Matrix to Custom Tuple Matrix. The custom tuple matrix is defined by a subclass of a tuple that has elements and it is separated by a comma to create the sublist(list represents matrix). Let’s take an example of this: Original Matrix: ...
Read MoreHow to Set up Multiple Subplots with Group Legends using Plotly in Python
The multiple subplots are defined by assigning different graph plots. Plotly is a powerful Python library for creating interactive visualizations for data research and presentation. Its capacity to put up multiple subplots, that are independent plots placed within a single figure, is one of its primary characteristics. This feature allows us to compare and display various datasets or variables side by side, giving us a simple overview of the data. In Python, we have some built−in functions− add_trace, update_layout, and, show which can be used to set up multiple subplots with group legends using Plotly in Python. Syntax The ...
Read MoreMaximum distance between two points in coordinate plane using Rotating Caliper’s Method
In C++ we have a predefined function sqrt that returns the square root of any number. The Rotating Caliper’s Method is the technique used to solve the algorithmic or computational geometry. Visual Representation of Rotating Caliper’s MethodThe hand rotation shows the real example of a rotating caliper graph, whenever the hand rotates the perpendicular direction is shown. We can also understand this concept by using a polygon shape. In this article, we are going to find the maximum distance of two coordinate points using Rotating Caliper’s Method. Syntax The following syntax used in the program − vector name ...
Read MoreFilter Non-None dictionary keys in Python
Python dictionary is one of the most popular data types among the following 4 datatypes. The dictionary defines the key with value pair and doesn’t allow the duplicate. The values are either strings or integers. Sometimes, while working on the dictionary it has some empty values that the None value can fill. For example- when we are working on a machine learning dataset it has found that some of the rows are empty and can be filled by the value None when performing the particular task. In Python, we have some built-in functions like items() and lambda that can be ...
Read MoreHow to Filter list elements starting with a given Prefix using Python?
The term prefix is defined by the beginning of the word or letter. In this article, we will learn how to use Python built-in functions like startswith(), filter(), lambda, and len() to Filter list elements starting with a given Prefix using Python. Let’s take an example to understand this − Let’s take an example to understand this: Given element list, My_list = [“Amelia”, “Kinshuk”, “Rosy”, “Aman”] Keyword to be searched, Prefix = “Am” Final result = [“Amelia”, “Aman”] Syntax The following syntax is used in all the examples − startswith() The is a built-in ...
Read MorePython - Filter odd elements from value lists in dictionary
The dictionary is a popular data type in Python that has a key with value pair and doesn’t allow duplicates. To filter the odd elements it has some built-in functions like items(), filter(), lambda, and, the list() will be used to Filter odd elements from value lists in the dictionary. The odd elements of the list are those elements that are not divisible by 2. For example − The given list, [10, 22, 21, 19, 2, 5] After filtering the odd elements from the list: The final result becomes [10, 22, 2] (These are the elements that are divisible by ...
Read MoreFilter Range Length Tuples in Python
A range length is defined by representing range of values that follow the start and end point along with the length. In Python, there are some built-in functions like list(), append(), filter(), and, lambda which can be used to solve the problem based on Filter Range Length Tuples. This type of problem statement normally helps to build the logic of filtering tool. Syntax The following syntax is used in the examples − len() The len() is the built-in method in Python that returns the length of the object. append() The append method in Python is used to add ...
Read MoreConvert Lists to Nested Dictionary in Python
The list is defined by an ordered sequence of elements whereas the nested dictionary defines the dictionary include another dictionary. The nested dictionary is required when we want to store large data in a big dictionary. In Python, we have some built-in functions like reduce() and zip() that Convert Lists into Nested Dictionary. For example- Dictionary data communicate the structural content of data which is easier to understand. Syntax The following syntax is used in the examples − reduce() This built-in function in Python follows the functools module to perform a specific operation on lists. zip() The zip() ...
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