Although static plot is the default option for scientific presentation, interactivity has its own power — Although the interactive plot has been widely used in fields like finance, the static plot is still the mainstream of scientific visualization. The reasons are simple, science emphasizes truth, not appearance. In addition to that, traditional scientific publications and presentations rely on the printed copy, which makes interactivity seem to…

Differences, usages, Python versus NumPy versus Pandas? — “String” in Python? Sounds like the most basic topics that every Python programmer should have already mastered in their first Python tutorial. However, do you know there are at least four types of strings in primitive Python? Do you know how your strings are actually represented in Numpy or Pandas…

Creating any colormap at your wills — Imagine you find a pretty colormap that other people used in their publications, and you want to use that in your results as well. However, unfortunately, it is not a built-in colormap in matplotlib. Is there a solution around? So today I am going to show you how I usually…

All you need to know to begin your Matlab journey — Matlab has arguably the most comprehensive documentation compared to other open-source programming languages. …

The concept of “Module” in Python — In the simplest case, we write codes in a single Python file (the file name ends with .py). We run it and everything works as expected, and we are happy. However, things can get a bit complicated when you have to split up your codes into multiple Python files, usually…

What’s the usage of ODE? How to solve ODE in Python? — Ordinary Differential Equation (ODE) can be used to describe a dynamic system. …

Delving a bit into what’s happening under the hood when you manipulate your Excel file or data frames. — I consider myself as an applied programmer, I use high-level programming languages like Python to manipulate the data frames, build simple pipelines to facilitate the data analysis of certain tasks. However, at the atomic level, the computer itself doesn’t understand what “pandas.read_csv()” means or what the “write.table()” function actually does…

A teaser of useful Shell commands that can drastically increase your productivity — When it comes to file parsing or data preprocessing, what would be the first programming language that comes to your mind? It might be Python, R, or some other similar scripting languages. Granted, these modern and high-level languages are very powerful and empower us to achieve our goals usually in…

A thorough Linear Algebra Bootcamp as a Machine learning Practitioner — As a data scientist or machine learning practitioner, how good is your linear algebra? No matter you have a positive or negative answer to this question, hopefully, after reading this post and practicing a bit, you will be able to grasp most of the Linear Algebra you need to know…