Archive for Which chart matches my message?

Pie Chart Makeover: Transforming a Research Report

Pie Chart Makeover: Transforming a Research Report

As I travel around giving data visualization workshops, I get to peek inside hundreds of attendees’ publications, slideshows, and spreadsheets (and then redesign them–the best part of my job).   Before Here’s a screenshot from one group’s (public-facing) research report. The authors of the report talked…

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Pie Chart Makeover: Quarterly Breakouts by Gender

Pie Chart Makeover: Quarterly Breakouts by Gender

A few weeks ago I was in Indianapolis with the juvenile detention alternatives initiative. This group wanted to graph: how many youth went to juvenile detention centers, by gender, and by quarter. Brainstorming There are a dozen ways to graph each dataset. For this data,…

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Sorting Your Bar Charts

Sorting Your Bar Charts

“Ann, my bar chart is upside down! Help!” You read my prior post about using horizontal bar charts for nominal variables like favorite fruits. My toddler is eating two! bananas a day so bananas are the winner in this fictional fruit contest. Our original table…

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Flipping Your Bar Charts

Flipping Your Bar Charts

“Ann, I read your latest post, and I accidentally made a horizontal bar chart when it should’ve been a vertical bar chart! Am I going to have to delete my graph and start from scratch?” No way. Don’t delete a thing. That would be a huge waste…

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Bar Charts: Vertical or Horizontal?

Bar Charts: Vertical or Horizontal?

“Ann, should my bar charts be horizontal or vertical?” Ordinal variables get vertical bars Ordinal variables follow a natural progression—an order. I arrange ordinal categories from left to right so my viewers can view the sequence across the page, which means their bars are vertical. Use…

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