Python

To calculate the standard error of the mean (SEM) in Python, use scipy library’s sem() function. For instance, let’s calculate the SEM for a group of numbers: Output: If you do not have scipy installed, run: That was the quick answer. But make sure to read along to learn about the standard error and how […]

To calculate the median value in Python: For example, let’s calculate the median of a list of numbers: Output: The median value is a common way to measure the “centrality” of a dataset. If you are looking for a quick answer, I’m sure the above example will do. But to really learn what median really

The ‘u’ in front of a string means the string is a Unicode string. A Unicode is a way for a string to represent more characters than a regular ASCII string can. In Python 2.x shell, you can see how for example a text written in Russian converts to a Unicode string with ‘u’ in

To return multiple values from a Python function, use a comma to separate the return values. For instance, let’s create a function that takes two numbers as arguments. This function returns the sum, difference, multiplication, and division between these two numbers. Here is how it looks in the code: Now you can call this function

To read the last line of a file in Python without storing the entire file in memory: Here is an example: The Naive Approach The most naive approach to read the last line of a file in Python is: Here is the code: Find the Last Line of a Large File in Python If you

To check if a Swift array contains an object with a specific property: For instance, let’s find out if a student called Bob is in an array of students: To understand how this works and to get the context, please read along. Full Example with Context First of all, let’s give context to the above

In Python, the assert statements make sure a condition is met before continuing the execution of the program. For example, let’s assert that a discounted price does not go below 0 nor surpass the original price: Calling this function with an input that makes the assertion fail will lead to the code crash with a

Programming means writing instructions for a computer to perform desired actions. It is one of the most in-demand skills in the world. Mobile apps, video games, websites, or any other piece of software is written by a programmer. There are lots of things you need to understand to wrap your head around programming. It is

To get the current time in Python: For example, here is a simple piece of code to get the current time: This displays the current time in HH:MM:SS format: This is a comprehensive guide to getting the current time in Python. You will learn how to get the current time in different formats and contexts

To get the last digit of a number in Python: For example, let’s get the last digit of the number 162329: Output: Shorthand Approach You can also make the above code a bit shorter by combining steps 1-3 into a single expression: The result: How to Get the Last Digit of a Decimal in Python