Statistician · Data Scientist
Building models and the
systems that carry them.
I'm Julián Úsuga Ortiz, a statistician working across machine learning, automation, and business intelligence. This site collects my writing on data systems, statistical analysis, and the tooling I build along the way.
- Focus
- Machine learning · BI
- Field
- Statistics
- Based in
- Colombia
- Writing
- 3 posts
Writing
RSS- 01
How to Use Claude Code
The compact September 2026 edition — setup once, the commands that earn their keep, subagents, hooks, and a sane default workflow.
howto claude toolsRead - 02
Speed in Relational DB Management Systems
A comparative study of processing speed across three popular DBMS - SQLite, MySQL, and PostgreSQL - analyzing performance with text data using a multi-factor experimental model.
experiment dbms sqlRead - 03
Modeling Survival times in African countries using rstanarm
In this study we used a Bayesian Approach to model survival times of the people in different African countries.
survival analysis rstanarm bayesian approachRead
