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Data Wrangler

June 13, 2024 By editor

Handy VS Code extension (from Microsoft) for viewing and cleaning data.

Filed Under: Data analysis

Counting votes using Excel

June 7, 2023 By editor

Excel strikes again. There were only two outcomes and the spreadsheet got it wrong. You’d be better flipping a coin.

Filed Under: Data analysis Tagged With: Excel, spreadsheets

Spreadsheet disasters

February 13, 2023 By editor

Matt Parker describes what happens when spreadsheets go wrong in the BBC’s "More or Less: Behind the Stats" podcast.

I’ve been writing about this for over a decade and, sadly, little progress had been made.

The cartoon is from xkcd, obviously.

Filed Under: Data analysis Tagged With: data quality, spreadsheets

10 ways to mislead with data visualization

February 7, 2023 By editor

PolicyViz have published a useful article on errors you really need to avoid when creating data visualizations.

Filed Under: Data analysis, Data science Tagged With: mistakes, visualization

Dutch giants

February 6, 2023 By editor

This chart crime made me afraid to visit Amsterdam.

This is the quality of chart you would expect to be published on a dot info domain. Someone paid someone else money for this and thought it was a perfectly fine way to visualize data. I mean, where to begin… pic.twitter.com/pYSBlVFLMG

— Adam Singer (@AdamSinger) January 8, 2023

I had to rework it to stop the nightmares.

Phew. Everyone looks normal now.

Filed Under: Data analysis, Data science Tagged With: visualization

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