Alexis Hope ENGINEERING & DESIGN NOTES

DataViz

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Data Sources for R — EDA Across a Heterogeneous Stack

#R#Elasticsearch#SQLite#Postgres#Redis

R has a reputation as a statistics tool — the thing you reach for when you need a regression or a publication-quality plot. That framing undersells it. The part of R that earns its place in a practical engineering workflow is its I/O story: the breadth of data sources it can …

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Static Images Are Losing the Engagement Battle

#Cloudinary#DAM#UX#Ecommerce#Media

There is a measurable cost to serving static images. Not a performance cost — that’s a different conversation, one I covered in an earlier post on Cloudinary as a DAM. This is an engagement cost: the gap between what a user feels when they interact with a product image and what …

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Simulating Colour Blindness with ImageMagick

#ImageMagick#Accessibility#DataViz#Colour#Design

Colour blindness affects roughly 8% of men and 0.5% of women with Northern European ancestry. For a data visualisation that uses colour as the primary encoding — a choropleth, a multi-series line chart, a heatmap — that’s a meaningful share of the audience for whom the visual may …

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SVG Path Functions

#SVG#D3#DataViz#Animation#JavaScript

SVG paths are written as a single d attribute — a mini-language of commands and coordinates that describes shapes. Each command is a letter; uppercase means absolute coordinates, lowercase means relative to the current position. This is a reference for all path commands with …

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