Over your career as a Data Scientist, there may be instances where you will work with data to/from a DataFrame to an Excel file. This article shows you how to manipulate this data using the above functions. This article covers the commonly used parameters for each function listed above. For a complete list of all … Read more
La forma más pitónica de convertir una lista de cadenas en una lista de flotantes es usar una comprensión de listas floats = [float(x) for x in strings]. Recorre todos los elementos de la lista y convierte cada elemento de la lista x en un flotante utilizando la función incorporada float(x). Este artículo muestra las … Read more
Syntax object.__bool__(self) The Python __bool__() method implements the built-in bool() function. So, when you cal bool(x), Python attempts to call x.__bool__(). If the return value is not a Boolean, Python raises a TypeError. We call this a “Dunder Method” for “Double Underscore Method” (also called “magic method”). To get a list of all dunder methods … Read more
Background The Python’s namedtuple() function is an integral part of the collections library. This function is an immutable container type. Any value, once set, cannot be modified. Access these values via the index or name attribute. The namedtuple() works similar to tuples, however namedtuple() has additional functionality. This article touches on a few of these … Read more
Annotations are defined in PEP 3107 allow you to add arbitrary metadata to the parameters and return values of functions. The __annotations__ attribute of a function object stores those annotations in a dictionary mapping function parameters or the return value to the specified annotations. Let’s have a look at a couple of examples next. Parameter … Read more
Summary: You may want to get a list of all the keys stored in a dictionary. In this use case, the dict.keys() method comes in handy. In this article, I will show some examples of the dict.keys() method to, hopefully, give you a better idea of how the method works. Definition: The Python dictionary built-in … Read more
Summary: When working with Python dictionaries, in some cases you may want to access a specific value of a certain item, this is where the dict.get() method comes in handy. Definition: Python’s dict.get() method expects a key argument. If the specified key is in the dictionary, the method will output the value associated with the … Read more
Summary: There are many different ways to copy the dictionary data structure objects in Python. In this tutorial, I will show you the built-in dict.copy() method, which is a very useful method for copying dictionaries. Definition: Whenever the dict.copy() method is applied to a dictionary, a new dictionary is made, which contains a copy of … Read more
In this tutorial, we will learn how to read in HTML tables using the read_html() function and how to turn these tables into Pandas data frames to analyze them. Furthermore, we will see how to render Pandas data frames as HTML tables applying the to_html() function. As you go through the article, you can also … Read more
Building on the skill(s) you learned earlier, Part 3 centers around manipulating the data. This skill is another must-have if you are interested in pursuing a career as a Data Scientist. Background After completing Part 2 of this series, you should be comfortable using Python to: access a single row/column value, access a range of … Read more
Part 2 of Working with Excel centers around accessing data from the Active Worksheet. This skill is one of the must-haves if you are interested in pursuing a career as a Data Scientist. Background After completing Part 1 of this series, you should be comfortable using Python to: create an Excel file, import a library, … Read more
In this blog post, you’ll learn about the Python Dictionary clear() method. But, before I cover the clear() method I would like to give a brief definition of what a Python Dictionary is. Definition: A Python dictionary data structure is a collection of key-value pairs that are unordered, and are accessed by a key instead … Read more