Machine Learning Tutorials

In this lab, you will learn the NumPy shape manipulation functions that allow you to manipulate the shape of NumPy arrays.

NumPy is a popular Python library used for scientific computing. It provides high-performance array operations and mathematical functions that are useful for numerical data analysis. In this lab, you will learn NumPy's slicing and indexing features.

In this lab, you will learn how to use NumPy to read and write arrays to files. NumPy provides several functions for file input and output that make it easy to work with large datasets.

NumPy is a Python library used for numerical computing. It is designed to work with arrays and matrices, making it a powerful tool for scientific computing. In this lab, you will learn the following three topics related to NumPy Array Operations:

Discover the ultimate online Python playground, where you can effortlessly write, test, and execute code in a user-friendly environment.

A weighted average is a type of average that takes into account the importance, or weight, of each value in a set of numbers. In this challenge, you will create a function that calculates the weighted average of a list of numbers.

In Python, the symmetric difference between two lists is a new list containing all elements that are in either of the original lists, but not in both. In this challenge, we will write a function that returns the symmetric difference between two lists, after applying the provided function to each list element of both.

In Python, you can remove elements from a list using various methods. One such method is to remove elements from the end of the list. In this challenge, you will write a function that removes n elements from the end of a list.

In computer science, binary is a base-2 numbering system that represents numeric values using two symbols, typically 0 and 1. Binary is widely used in computing and digital electronics. In this challenge, you will write a Python function that takes a decimal number as input and returns its binary representation.

In Python, you can calculate the difference between two dates using the datetime module. This challenge will test your ability to calculate the month difference between two dates.

In linear algebra, the transpose of a matrix is an operator which flips a matrix over its diagonal. The transpose of a matrix is obtained by exchanging its rows into columns. In Python, we can transpose a two-dimensional list using a simple one-liner code.

In Python, a dictionary is a collection of key-value pairs. Sometimes, we need to create a dictionary from a list where the keys are the elements of the list and the values are the result of applying a function to those elements. In this challenge, you will create a function that maps the values of a list to a dictionary using a function.

In Python, you can use the min() function to find the minimum value of a list. However, what if you want to find the minimum value of a list based on a specific property or attribute of each element in the list? This is where the min_by() function comes in handy.

In statistics, the median is a measure of central tendency that represents the middle value of a dataset. It is the value separating the higher half from the lower half of a data sample. In this challenge, you will be required to write a Python function that finds the median of a list of numbers.

In Python, a dictionary is a collection of key-value pairs. Sometimes, we need to transform the values of a dictionary using a function. This challenge will test your ability to create a function that takes a dictionary and a function as arguments and returns a new dictionary with the same keys as the original dictionary and values generated by running the provided function for each value.

In this challenge, you are tasked with writing a Python function that returns the n minimum elements from a given list.

In Python, dictionaries are a useful data structure that allows you to store key-value pairs. Sometimes, you may need to find the key of the maximum value in a dictionary. In this challenge, you will write a function that takes a dictionary as an argument and returns the key of the maximum value in the dictionary.

In mathematics, a prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. For example, 5 is prime because the only ways of writing it as a product, 1 × 5 or 5 × 1, involve 5 itself. However, 4 is not prime because it is a product (2 × 2) in which both numbers are smaller than 4. In this challenge, you need to write a Python function to check if a given number is prime or not.