Randy Zwitch is a software engineer specializing in Python and data engineering. His blog features detailed tutorials on building and optimizing Python tools like PyArrow with GPU/CUDA support, Docker workflows, and high-performance data processing.
96 articles from this blog
RSiteCatalyst 1.4.10 adds QueueDatawarehouse, new Get* methods, and bug fixes for the Adobe Analytics R package.
A developer shares performance data showing a 30x speed improvement after migrating a blog from WordPress to Jekyll on GitHub Pages.
Introducing batch report requests in RSiteCatalyst v1.4.9 for faster bulk data downloads from the Adobe Analytics API.
A technical guide on validating and analyzing Adobe Analytics clickstream data in PostgreSQL, including anomaly detection for bot rule creation.
An open-source developer calls out Adobe for taking credit for the RSiteCatalyst R package without proper attribution at their conferences.
A developer solves Travis CI build timeouts by using testthat's filter argument to split R package tests into smaller, faster-running chunks.
Release notes for RSiteCatalyst 1.4.8, featuring segment stacking, date range parameters, and bug fixes for the Adobe Analytics R package.
A technical guide on using R and PostgreSQL to load and manage large-scale Adobe Analytics Clickstream Data Feed into a relational database.
A technical guide demonstrating how to call the RSiteCatalyst R package from Python using the rpy2 library for data analysis.
Release notes for RSiteCatalyst versions 1.4.6 and 1.4.7, detailing bug fixes and new features for the Adobe Analytics R package.
A technical guide on processing millions of small text files using GNU Parallel and stream processing, without needing Hadoop or a database.
Fixes for a C programming book's OSX Makefile error (Error 64) when using the c99 compiler, offering three solutions.
Release notes for RSiteCatalyst v1.4.5, a minor update adding custom API endpoints and new functions for Adobe Analytics.
Video presentation from JuliaCon 2015 on using Julia for data analytics and visualization, featuring a Citi Bike API analysis and the Vega.jl package.
Apple declares the 2008 MacBook Pro model A1286 'vintage,' ending official support and parts availability, as the author shares their upgrade experience.
A guide to securely testing authenticated APIs in open-source projects using encrypted environment variables in Travis CI and the testthat framework in R.
A technical guide on analyzing Adobe Analytics Clickstream Data Feed using R, covering file structure, data verification, and initial processing.
RSiteCatalyst v1.4.4 release notes detail a major bug fix for sparse data errors and minor updates to authentication messaging.
A developer revives the Vega.jl package for Julia, updating it for v0.4, adding Jupyter Notebook support, and planning new visualizations.
![Sessionizing Log Data Using data.table [Follow-up #2]](https://alldevblogs.blob.core.windows.net/thumbs/article-5492ddc04289-full-2f21506a.webp)
A follow-up article demonstrating a third method for sessionizing log data using R's data.table and magrittr packages.
