Category Archives: Tech

Gadgets, UX, Software, Statistics, Information Display and Retrieval

Mosaic Plots

This is cool charts #5. Mosaic plots are rectangular plots composed of smaller rectangles typically used to display measures of counts or sums of a scale level variable for 2 or more categories. The area of the rectangle is proportional … Continue reading

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Modern Telephony

Thanks to the internet and modern technology my phone service has gotten a lot more convenient and cheaper. Two years ago I had a conventional land line from Qwest and a simple cell phone from Verizon. My internet service was … Continue reading

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Heat Maps

This is cool charts #4. A heat map (sometimes spelled as a single word) is a two dimensional chart in which areas of the chart display some sort of color scale mapped to a scale level variable. The name is … Continue reading

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Do I Need a Tablet?

I’ve got 2 laptops, a netbook, a large mp3 player, three cameras, and a smartphone. Do I need a tablet? My Tech Toys I use one laptop as my main computer. It’s running Vista, has a DVD drive, connected to … Continue reading

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A River Runs Through It

This is cool chart #3. Charts are frequently used to display volume or size over time. A usual approach is to do this via an area chart in which a data series is displayed on the Y axis and time … Continue reading

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Economic Development Over Time

This is cool chart #2. Hans Rosling graphs life expectancy vs. income per capita for 200 countries in a bubble chart animated over time. The size of the bubbles represent population. Bigger bubbles-bigger countries. The countries are also color-coded by … Continue reading

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An Interactive Network Diagram

I previously promised that I would blog about some really cool charts and this is example #1. This network diagram was created by the New York Times interactive media team and is implemented in Flash. I’ll provide a number of … Continue reading

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