D

data-visualization

Code used to generate reporting products for DC PCSB’s, including reports on the ASPIRE system.

Render Strava activity into stylized heatmap posters and inline SVG. Real polyline-circle obfuscation. Privacy flags for shippable renders.

Reproducible EU plastics own-resource accounting, Portugal scenarios, and publication figures for The Plastic Tax That Plastic Does Not Pay. Includes source provenance, validated calculations, and a locked Python environment.

Reproducible Python experiments on ergodicity, mixing, and chaos: logistic and standard maps, Lorenz dynamics, and multiplicative growth. Code, five publication figures, numerical checks, and a locked environment accompany a separately published Medium article.

A drag-and-drop graph builder built with PyQtGraph for creating interactive visualizations from CSV data. Features formula-based column creation, multiple plot types, and real-time performance. Now, also has a thermal and electrical conductivity calculator with database. This repository has been made entirely by vibe-coding in Cursor. Project avatar is from https://www.flaticon.com/free-icon/bar-graph_404621

Provides biomedical plotting archetypes fully interoperable with the matplotlib API.

Lightweight SVG chart Web Component — four chart types in a single

Public CohortWatch interface for evidence-backed, cohort-relative startup momentum. Live at cohortwatch.dev.

HexPaint: A Python GUI tool designed to convert list-based hex color codes in Excel into solid visual palette fills. It processes multiple 'Hex X' columns, automatically handles layout offsets, flags incorrect values with a distinct error color, and dynamically builds custom colored spreadsheets for designers and developers

Xythera is a modular AGPL 3.0+ AI platform for sensor intelligence, open hardware design generation, and engineering automation. It enables the creation, validation, and visualization of hardware systems through constraint-driven AI, while producing step-by-step build instructions and maintaining full provenance and attribution for all generated designs. https://roxanneardary.com/xythera/

Exploratory Data Analysis of Online Retail Dataset (2009–2011) with Python, Excel & Tableau

https://public.tableau.com/app/profile/artur.melnyk/viz/EDAvisualization/OnlineRetailEDAStory

Explainable suburb similarity explorer built with Python, Streamlit, vector search and transparent model reasoning.

Tiny inline-SVG sparkline component for Astro. Zero runtime, zero dependencies, server-rendered. ~90 lines.

memory.fm is a web application for exploring music listening history from Last.fm and Spotify.

Predicts the risk level of a user session using behavioral signals

React Native mobile platform for real-time BLE sensor monitoring of instrumented athletic mouthguards — impact detection, concussion risk assessment, and multi-athlete dashboards

Dashboard Comercial desenvolvido do zero com modelagem relacional no DBeaver (SQL), pipeline de transformações no Power Query e visualizações interativas no Power BI. Projeto de estudo para portfólio.

This project is a product sales tracking application designed to monitor and analyze commercial performance. It provides a centralized platform for managing inventory, recording transactions, and generating insights into sales trends to help optimize business growth and revenue management.

This project is an e-commerce payment dashboard designed to monitor and manage financial transactions. It provides a specialized interface for tracking payment statuses, analyzing revenue streams, and overseeing transaction history to ensure secure and efficient payment processing for online businesses.

This project is an e-commerce retail dashboard designed to analyze and manage retail operations. It provides a comprehensive overview of retail performance, focusing on key metrics such as inventory turnover, customer purchasing patterns, and regional sales distribution to help streamline supply chain and storefront management.