Tag: condition
C++11 Multithreading – Part 7: Condition Variables Explained
In this article we will discuss the usage of Condition Variable in C++11 Multi-threading with example. Condition Variables Condition Variable is a kind of Event used for signaling between two or more threads. One or more thread can wait on it to get signaled, while an another thread can signal this. Advertisements Header file required for condition …
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Python : How to Check if an item exists in list ? | Search by Value or Condition
In this article we will discuss different ways to check if a given element exists in list or not. Table of Contents Introduction Check if element exists in list using python “in” Operator Check if element exist in list using list.count() function Check if element exist in list based on custom logic Introduction Suppose we …
Python : How to Check if an item exists in list ? | Search by Value or ConditionRead More
Python : Check if all elements in a List are same or matches a condition
In this article we will dicuss different ways to check if all element in a given List are same or matches a condition. Suppose we have a list of string i.e. Advertisements # List of string listOfStrings = [‘Hello’] * 10 Now let’s use python all() function to check if all elements in the given …
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NumPy – Select Elements By Condition
In this article we will discuss how to select elements or indices from a Numpy array based on multiple conditions. Similar to arithmetic operations when we apply any comparison operator to Numpy Array, then it will be applied to each element in the array and a new bool Numpy Array will be created with values …
Pandas : count rows in a dataframe | all or those only that satisfy a condition
In this article we will discuss different ways to count number of all rows in a Dataframe or rows that satisfy a condition. Let’s create a Dataframe, Advertisements # List of Tuples empoyees = [(‘jack’, 34, ‘Sydney’, 5) , (‘Riti’, 31, ‘Delhi’ , 7) , (‘Aadi’, 16, np.NaN, 11) , (‘Mohit’, np.NaN,’Delhi’ , 15) , …
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Count with If Condition in MySQL Query
Count() function in MySQL is to get the number of rows in a MySQL table or expression. In this article, we will talk about the count() function with if(). We are creating a table students_data followed by adding data to it. CREATE TABLE students_data ( student_id INT AUTO_INCREMENT, student_name VARCHAR(255), student_address VARCHAR(255), student_grade VARCHAR(255), student_subject VARCHAR(255), PRIMARY …
Trigger with if condition in mysql
In this article, we will see how to structure the IF condition in MySQL. Triggers are named database objects linked with a table that execute automatically when a particular event occurs on the table. Let us look at adding if conditions within trigger in MySQL by an example, but before moving ahead, we will create sample …
Check if all elements of a list match a condition in Python
In this article, we will learn how to check if all elements of a list matches a given condition in Python. Table Of Contents Solution 1 : Using all() function Solution 2 : Using for-loop Summary Solution 1 : Using all() function To verify if all elements in a list matches a condition, apply the …
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Check if any elements in list match a condition in Python
In this article, we will learn how to check if any element in list matches a given condition in Python. Table Of Contents Solution 1 : Using all() function Solution 2 : Using for-loop Summary Solution 1 : Using all() function To verify if any element in list matches a condition, apply the given condition …
Check if any elements in list match a condition in PythonRead More
Create a column based on condition in Pandas DataFrame
In this article, we will discuss how to create a column based on certain conditions in a pandas DataFrame. Table of Contents Preparing DataSet Method 1: Using numpy.where function Method 2: Using numpy.select() function Method 3: Using custom function Method 4: Using List Comprehension Summary Preparing DataSet To quickly get started, let’s create two sample …
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