Visualization of my blog categories

This visualizes how often I blogged something with a tag in a given year, sorted by all-time popularity. There are more categories, but I skipped them. The height of each block represents how many blog posts I wrote in that category, while the different blocks represent the years, ending with 2010 at the far right. The graph reflects changing interests and recurring themes.

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This visualizes some of the things I’ve been writing about in 2010. We’re only a month in, so the last line is pretty small, and in some cases (n < 4) not even visible.

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Sparkline bar graphs created with Sparklines for Excel. Initial categories table created with the following SQL incantation:

select p.post_date, p.post_title, terms.name from wp_posts p inner join wp_term_relationships tr on p.id=tr.object_id inner join wp_term_taxonomy tt on tr.term_taxonomy_id=tt.term_taxonomy_id inner join wp_terms terms on tt.term_id=terms.term_id into outfile '/tmp/categories.csv';

then imported and tweaked in Microsoft Excel.

  • http://flowingmotion.wordpress.com Jo Jordan

    So clever. What was the data file?

  • http://sachachua.com Sacha Chua

    The data file was a CSV created using the SQL statement above. It had the post date, title, and category name. I then used the YEAR function in Microsoft Excel to extract just the year, and I used a pivot table to sum it all up. I could’ve done that in SQL too (the summary, and probably the year calculation too), but pulling in the raw post data meant that I could slice and dice it in other ways.

  • http://flowingmotion.wordpress.com Jo Jordan

    Thanks Sacha. I think I would have to export a CSV file from WordPress.com Then I can find my way though Excel from there.

    Great idea!

    • http://sachachua.com Sacha Chua

      Oh, that’s what you meant. =) Yes, you’ll probably have to export your posts and then figure out what to do with them. One of the perks of hosting my own WordPress installation is that I can play around with the database myself.

  • http://flowingmotion.wordpress.com Jo Jordan

    Good point. I am in the process of migrating my blog. Maybe I should do that first.