Implement your own word2vec(skip-gram) model in Python Natural language processing (NLP) is a subfield of computer science and artificial intelligence concerned with the interactions between computers and human (natural) languages.In NLP techniques, we map the words and phrases (from vocabulary or corpus) to vectors of numbers to make the processing easier. These types of language modeling techniques 9 min read How to skip rows while reading csv file using Pandas? Python is a good language for doing data analysis because of the amazing ecosystem of data-centric python packages. Pandas package is one of them and makes importing and analyzing data so much easier. Here, we will discuss how to skip rows while reading csv file. We will use read_csv() method of Pandas library for this task. Syntax: pd.read_csv(fil 3 min read An Ultimate Guide To Using Pytest Skip Test And XFail The Python framework used for writing and executing test cases is known as Pytest. There are some circumstances when you want to skip tests or run the tests, but not count them during PyTest run, then you can use skip and Xfail tests respectively. In this article, we will discuss how we can use Xfail and skip tests in Pytest. XFail/ skip tests in P 2 min read How to skip every Nth index of NumPy array ? NumPy arrays offer efficient numerical operations and data storage. When working with large arrays, sometimes it's necessary to skip specific indices for optimization or data processing purposes. This article will show how to skip every Nth index of the NumPy array. There are various ways to access and skip elements of a NumPy array: Skip Every Nth 4 min read Python | Convert list of string to list of list Many times, we come over the dumped data that is found in the string format and we require it to be represented in the actual list format in which it was actually found. This kind of problem of converting a list represented in string format back to la ist to perform tasks is quite common in web development. Let's discuss certain ways in which this 7 min read Python | Check if all the values in a list that are greater than a given value Given a list, print all the values in a list that are greater than the given value Examples: Input : list = [10, 20, 30, 40, 50] given value = 20 Output : No Input : list = [10, 20, 30, 40, 50] given value = 5 Output : YesMethod 1: Traversal of list By traversing in the list, we can compare every element and check if all the elements in the given l 4 min read Python | Ways to find indices of value in list Usually, we require to find the index, in which the particular value is located. There are many methods to achieve that, using index(), etc. But sometimes require to find all the indices of a particular value in case it has multiple occurrences in the list. Let's discuss certain ways to find indices of value in the given list of Python. Ways to fin 6 min read Python | Count number of items in a dictionary value that is a list In Python, dictionary is a collection which is unordered, changeable and indexed. Dictionaries are written with curly brackets, and they have keys and values. It is used to hash a particular key. A dictionary has multiple key:value pairs. There can be multiple pairs where value corresponding to a key is a list. To check that the value is a list or 5 min read Python | Min/Max value in float string list Sometimes, while working with a Python list, we can have a problem in which we need to find min/max value in the list. But sometimes, we don't have a natural number but a floating-point number in string format. This problem can occur while working with data, both in web development and Data Science domain. Let's discuss a way in which this problem 6 min read Python - Value List Key Flattening Sometimes, while working with Python dictionaries, we can have a problem in which we need to perform pairing of each value of keys to extract the flattened dictionary. This kind of problem can have application in data domains. Lets discuss certain way in which this task can be performed. Method #1: Using loop This is brute way in which this task ca 7 min read Python - Keys associated with value list in dictionary Sometimes, while working with Python dictionaries, we can have a problem finding the key of a particular value in the value list. This problem is quite common and can have applications in many domains. Let us discuss certain ways in which we can Get Keys associated with Values in the Dictionary in Python. Example Input: {'gfg': [4, 5], 'best': [10, 4 min read Python - Remove empty value types in dictionaries list Sometimes, while working with Python dictionaries, we require to remove all the values that are virtually Null, i.e does not hold any meaningful value and are to be removed before processing data, this can be an empty string, empty list, dictionary, or even 0. This has applications in data preprocessing. Let us discuss certain ways in which this ta 7 min read Python - Select random value from a list Selecting a random value from a Python list can be done by multiple ways. To randomly select value from list, you can use random.choice() method. Using random.choice() random.choice() function is designed for getting a Random sampling from a list in Python. It is the most common method to achieve this task. [GFGTABS] Python import random a = [1, 4, 4 min read Python Value Error :Math Domain Error in Python Errors are the problems in a program due to which the program will stop the execution. One of the errors is 'ValueError: math domain error' in Python. In this article, you will learn why this error occurs and how to fix it with examples. What is 'ValueError: math domain error' in Python?In mathematics, we have certain operations that we consider un 4 min read Sort Python Dictionary by Key or Value - Python There are two elements in a Python dictionary-keys and values. You can sort the dictionary by keys, values, or both. In this article, we will discuss the methods of sorting dictionaries by key or value using Python. Sorting Dictionary By Key Using sort()In this example, we will sort the dictionary by keys and the result type will be a dictionary. [ 6 min read How to check if Pandas column has value from list of string? In this article, we are going to see how to check if the pandas column has a value from a list of strings in Python. List of strings means a list contains strings as elements, we will check if the pandas dataframe has values from a list of strings and display them when they are present. We will get the dataframe columns where the strings in the lis 2 min read Python | Maximum sum of elements of list in a list of lists Given lists in a list, find the maximum sum of elements of list in a list of lists. Examples: Input : [[1, 2, 3], [4, 5, 6], [10, 11, 12], [7, 8, 9]] Output : 33 Explanation: sum of all lists in the given list of lists are: list1 = 6, list2 = 15, list3 = 33, list4 = 24 so the maximum among these is of Input : [[3, 4, 5], [1, 2, 3], [0, 9, 0]] Outpu 4 min read Python List Comprehension | Segregate 0's and 1's in an array list You are given an array of 0s and 1s in random order. Segregate 0s on left side and 1s on right side of the array. Examples: Input : arr = [0, 1, 0, 1, 0, 0, 1, 1, 1, 0] Output : [0, 0, 0, 0, 0, 1, 1, 1, 1, 1] We have existing solution for this problem please refer Segregate 0s and 1s in an array link. We can solve this problem quickly in Python usi 2 min read Python | Sort list of list by specified index We can sort the list of lists by using the conventional sort function. This sort the list by the specified index of lists. Let's discuss certain ways in which this task can be performed using Python. Method 1: Using the bubble sort algorithm Bubble sort is a simple sorting algorithm that repeatedly steps through the list to be sorted, compares each 8 min read Python | Remove all values from a list present in other list Sometimes we need to perform the operation of removing all the items from the lists that are present in another list, i.e we are given some of the invalid numbers in one list which need to be get ridden from the original list. Let's discuss various ways How to remove the elements of a list from another list in Python. Illustration: Input: List one 10 min read Python | Sort list according to other list order Sorting is an essential utility used in majority of programming, be it for competitive programming or development. Conventional sorting has been dealt earlier many times. This particular article deals with sorting with respect to some other list elements. Let's discuss certain ways to sort list according to other list order. Method #1 : Using List 5 min read Python | Ways to Convert a 3D list into a 2D list List is a common type of data structure in Python. While we have used the list and 2d list, the use of 3d list is increasing day by day, mostly in case of web development. Given a 3D list, the task is to convert it into a 2D list. These type of problems are encountered while working on projects or while contributing to open source. Below are some w 3 min read Python | Merge List with common elements in a List of Lists Given a list of list, we have to merge all sub-list having common elements. These type of problems are very frequent in College examinations and while solving coding competitions. Below are some ways to achieve this. Input: [[11, 27, 13], [11, 27, 55], [22, 0, 43], [22, 0, 96], [13, 27, 11], [13, 27, 55], [43, 0, 22], [43, 0, 96], [55, 27, 11]] Out 3 min read Python | Subtract two list elements if element in first list is greater Given two list, If element in first list in greater than element in second list, then subtract it, else return the element of first list only.Examples: Input: l1 = [10, 20, 30, 40, 50, 60] l2 = [60, 50, 40, 30, 20, 10] Output: [10, 20, 30, 10, 30, 50] Input: l1 = [15, 9, 10, 56, 23, 78, 5, 4, 9] l2 = [9, 4, 5, 36, 47, 26, 10, 45, 87] Output: [6, 5, 5 min read Python - Filter the List of String whose index in second List contains the given Substring Given two lists, extract all elements from the first list, whose corresponding index in the second list contains the required substring. Examples: Input : test_list1 = ["Gfg", "is", "not", "best", "and", "not", "CS"], test_list2 = ["Its ok", "all ok", "wrong", "looks ok", "ok", "wrong", "thats ok"], sub_str = "ok" Output : ['Gfg', 'is', 'best', 'an 10 min read Appending Item to Lists of list using List Comprehension | Python If you are a Python user, you would know that in Python, we can use the append() method to add an item to an existing list. This list may already contain other items or be empty. Further, the item to be added can simply be a number a character, or even an entire tuple or list. However, if you are trying to append an item to lists within a list comp 5 min read Python Regex to extract maximum numeric value from a string Given an alphanumeric string, extract maximum numeric value from that string. Alphabets will only be in lower case. Examples: Input : 100klh564abc365bgOutput : 564Maximum numeric value among 100, 564 and 365 is 564.Input : abchsd0sdhsOutput : 0Python Regex to extract maximum numeric value from a stringThis problem has existing solution please refer 2 min read How to Get the Minimum and maximum Value of a Column of a MySQL Table Using Python? Prerequisite: Python: MySQL Create Table In this article, we are going to see how to get the Minimum and Maximum Value of a Column of a MySQL Table Using Python. Python allows the integration of a wide range of database servers with applications. A database interface is required to access a database from Python. MySQL Connector-Python module is an 2 min read How to Find the T Critical Value in Python? To perform a T-test, we will get a test statistic as a result and determine whether the T-test results are statistically significant, we can compare the test statistic with the T critical value, if the absolute value of the test statistic is greater than the T critical value, then the test results are statistically significant. T critical value can 2 min read Update column value of CSV in Python Prerequisites: Pandas In this article, we will discuss ways in which the value(s) of a column can be updated. The best and the optimal way to update any column value of a CSV is to use the Pandas Library and the DataFrame functions. Link for the CSV file in use - Click here Method 1 Approach Import moduleOpen CSV file and read its dataFind column t 3 min read
