Showing posts with label variation. Show all posts
April 8, 2021
How to Create a Ternary Graph / Triangular Chart
background image
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relative change
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relative value
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table calc
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table calculation
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tableau
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ternary chart
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ternary graph
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tip
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triangle
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variance
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variation
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Each dimension is plotted based on its relative variance (on a scale of 0%-100%) to the largest value within the dimension.
A value plotted near the top would indicate a weighting towards the variable at the top. Likewise, for the bottom right, a value plotted there would indicate a weighting towards the variable that was plotted on the bottom right.
A value in the middle, indicates the dimension is balanced across all three variables.
Download the Car Sales mock data set here. Download the triangle I used as the background image on the chart here.
October 4, 2016
Motor Vehicle Occupant Death Rates in the USA
comparison
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difference
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gantt
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road safety
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United States
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variation
I was reading through feedly this morning and saw this great viz by The Economist.
I really like this simplicity of the viz, yet the detail and insight it provides. In particular, I like the Gantt chart style they used to compare 2000 to 2013. One of the best way to learn is to recreate charts you find and like.
For my version, I used data from the CDC about motor vehicle deaths by state in the US. Overall I went with a similar Gantt bar style to compare the change in the years. I made these additional enhancements:
- Removed the line that makes them look like candlesticks
- Muted the gridlines
- Moved the labels next to the bars
- Colour-coded the bars to show whether each state has increased of decreased
- Moved the United States average to the top to make it easier to compare to
Which version do you prefer? What else would you do differently? You can click on the image below to download the workbook from Tableau Public.
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