Pierian Blog

Data Science, Tutorials

Guide to NLTK – Natural Language Toolkit for Python

Introduction Natural Language Processing (NLP) lies at the heart of countless applications we use every day, from voice assistants to spam filters and machine translation. It allows machines to understand, interpret, and generate human language, bridging the gap between humans and computers. Within the vast landscape of NLP tools and techniques, the Natural Language Toolkit […]

Machine Learning, Tutorials

GridSearchCV with Scikit-Learn and Python

Introduction In the world of machine learning, finding the optimal set of hyperparameters for a model can significantly impact its performance and accuracy. However, searching through all possible combinations manually can be an incredibly time-consuming and error-prone process. This is where GridSearchCV, a powerful tool provided by Scikit-Learn library in Python, comes to the rescue. […]

Python Basics, Tutorials

Plotting Time Series in Python: A Complete Guide

Introduction Time series data is a type of data that is collected over time at regular intervals. It can be used to analyze trends, patterns, and behaviors over time. In order to effectively analyze time series data, it is important to visualize it in a way that is easy to understand. This is where plotting […]

Python Basics, Tutorials

A Beginner’s Guide to Scipy.ndimage

Introduction Scipy.ndimage is a package in the Scipy library that is used to perform image processing tasks. It provides functions to perform operations like filtering, interpolation, and morphological operations on images. In this guide, we will cover the basics of Scipy.ndimage and how to use it to manipulate images. What is Scipy.ndimage? Scipy.ndimage is a […]

Python Basics, Tutorials

Adding Subtitles to Plots in Python: A Complete Guide

Introduction Adding subtitles to plots is an essential part of data visualization. Subtitles provide context to the plot and help the viewer understand the purpose of the visualization. In Python, adding subtitles to plots is a straightforward process that can be achieved using Matplotlib – a popular data visualization library. Matplotlib provides the `title()` function […]

Python Basics, Tutorials

What Does [:] Mean in Python? A Guide to Slicing

Introduction Slicing is an important concept in Python that allows us to select specific elements from a list, tuple or string. It is done using the slicing operator [:]. The operator takes two arguments separated by a colon. The first argument specifies the index of the element where the slice starts and the second argument […]

Python Basics, Tutorials

Measuring Distance with Scipy Spatial Distance

Introduction Scipy is a Python library used for scientific computing and technical computing. It provides a wide range of functions for mathematical operations, signal processing, optimization, and more. One of the key functionalities that Scipy provides is the ability to measure distance between two points in space. This is done using the Scipy Spatial Distance […]

Python Basics, Tutorials

Scipy Interp1d: A Comprehensive Tutorial

Introduction Scipy Interp1d is a powerful Python function that allows us to interpolate 1-dimensional data. It is part of the Scipy library, which is a fundamental library for scientific computing in Python. Interpolation refers to the process of estimating values between two known data points. In other words, it helps us to predict the value […]

Python Basics, Tutorials

How Scipy Calculates Condition Number: Explained

Introduction Condition number is an important concept in linear algebra and is used to measure the sensitivity of a matrix to changes in its input values. In simple terms, it tells us how much the output of a system will change given a small change in its input. This concept is particularly important when working […]

Python Basics, Tutorials

Working with Scipy Stats Norm: A Guide

Introduction Scipy Stats Norm is a sub-library of Scipy Stats that is used for working with the normal distribution. The normal distribution is an important statistical distribution that is widely used in various fields such as finance, physics, and engineering. Scipy Stats Norm provides a range of tools for working with the normal distribution, including […]