It’s almost Friday again; the week has gone by so quickly. I’ve wanted to change the cover of my previous article for a long time. The old one was generated in MATLAB with a logo input back in 2020, and it always felt a bit outdated, haha. Today, I’m trying out a new cover for … Read more
Solution to the Issue of MATLAB Axis Lines Being Covered by pcolor Coverage Situation: The plot without using m_map is as follows: .rtcContent { padding: 30px; } .lineNode {font-size: 10pt; font-family: Menlo, Monaco, Consolas, "Courier New", monospace; font-style: normal; font-weight: normal; }close allfigure('Position',[100 100 800 600])pcolor(Lon, Lat, theta_sel');shading interp; colorbar;colormap(jet);caxis([min(theta_sel(:),[],'omitnan'), max(theta_sel(:),[],'omitnan')]);xlabel('Longitude (°E)');ylabel('Latitude (°N)');grid on; box … Read more
This is an old article from 2022. With the support of AI now, it should be much easier to accomplish. Background I happened to see a video discussing national fortunes, and felt inspired after watching it, so I shared it on my video account. Later, I thought, could I find some data to support it? … Read more
Source | Network Today, I would like to share several practical pure Python libraries for building visualization interfaces. For instance, if you have written scripts but do not want to share the code with others, you can use these packages to quickly create attractive interfaces to provide services for others. Below are the latest update … Read more
Working with new colleagues unfamiliar with Python for data analysis has truly made me feel “powerless”—a basic data cleaning task requires repeated explanations, and when mentioning Pandas or Matplotlib, they look completely lost. In fact, getting started with data analysis isn’t that difficult; it just lacks a clear guide that goes “from basics to practical … Read more
Co-authored by Ji Danwen, Zhang Man, and Lou Yongqi, the paper “Exploring an ANT-inspired mapping approach for embedded design practitioners: a case-informed process,” also known as “探索面向嵌入式设计实践者的 ANT 启发映射方法：基于案例的过程”, was published in 2025 in the CoDesign journal. This journal is an international peer-reviewed publication under Taylor & Francis, focusing on theories, methods, and practices of … Read more
Most of my categories are recorded while I learn, so they tend to be more like notes and somewhat rough. 01 — Theoretical Three Steps of Analysis Report Step One: Identify Our Business Needs As a job seeker, it is important to understand the market situation for Python, such as: application fields (software development, scientific … Read more
Free for commercial use! An industrial web low-code visual development platform with over 1500 components. Revealed! Why must MQTT choose TCP? Industrial islands? Connect Modbus and MQTT in one minute. Is debugging IoT devices too troublesome? Complex protocols and hard-to-track messages? The open-source project MqttInsight comes to the rescue! It is a multifunctional MQTT desktop … Read more
Plotting is easy and very useful. Quick reference for plotting, some parameter settings. References: 1. https://github.com/peijin94/matlabPlotCheatsheet 2. https://github.com/mathworks/visualization-cheat-sheet －The end－ Learning, popular science, commentary, reflections, and wealth. Years of accumulation, obtained by chance!
In seismic signal processing, spectrum analysis is one of the commonly used signal analysis techniques. As a drawing technique tutorial, this article provides a visual display of seismic data, single-trace recorded waveforms, and their spectrum. In fact, seismic waveform displays are usually drawn by filling the area of a half-polar closed curve, which can be … Read more