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An implementation of Stephen Few's bandlines

on Sat, 02/02/2013 - 07:32

Jim Wahl created an example of bandlines implementation in Tableau which called totally my attention because of his creativity and originality. This implementation used a percentile algorithm implemented and published by Richard Leeke, a Tableau Zen Master, in Tableau Community Forum.

Because of the relevance of Jim's implementation, I want to show bellow Jim's original interactive data visualization demonstrating that it is really possible to implement bandlines in Tableau.

Re-doing the Average Annual Expenditures

on Mon, 01/21/2013 - 16:57

This is a re-make of my first proposal of visualizing a data table regarding a comparison of average annual expenditures between home owners and renters by categories of expenditure. This proposal was an entry to the Forbes Graph Makeover Contest.

Mortality in the World 1970-2010

on Mon, 01/14/2013 - 04:54

This article aims to highlight the magnitude, distribution and trends of mortality in the World. To cover this subject, mortality or death rate, measured as number of deaths per 100,000 population is the health metric used. The data is available online at Global Burden of Disease Study 2010 (GBD 2010) Mortality Results 1970-2010.

Fewer people dying but more live with disability

on Tue, 12/18/2012 - 04:14

This article highlights the progress of life expectancy in the World in the last forty years and how this positive impact is bringing a new public health issue, an increase in the number of years that people are living with disabilities. An interactive data visualization using three key indicators estimated by GBS 2010: 1) Life Expectancy; 2) Healthy-Adjusted Life Expectancy; and 3) Healthy Years Lost, defined as the difference between health-adjusted life expectancy (HALE) and life expectancy is featured to encourage exploration and analysis from readers.

Fungal Meningitis Outbreak in US, 2012

on Sun, 10/28/2012 - 22:27

On September 18, 2012, the Tennessee Department of Health was alerted by a clinician regarding a patient with culture-confirmed Aspergillus fumigatus meningitis diagnosed 46 days after epidural steroid injection at a Tennessee ambulatory surgical center. This date marked the begin of an outbreAk of Fungal Meningitis in US that spread suddenly to some states of the country.

A data visualizations to help describing the spread of this outbreak including cases, deaths and health facilities that received contaminated steroid injections is featured.

Tracking STDs, HIV and AIDS in Texas, 2006-2010

on Mon, 10/08/2012 - 04:35

Examining five years of historical data on sexually-transmitted diseases (STDs) and HIV / AIDS in Texas State and suggesting what the case count and incidence rates will look like in the near future. The data visualization was created by Steve Wexler from Data Revelations using data from Texas Department of Health Services.

Geography of Diabetes in US: A conditioned map

on Mon, 10/01/2012 - 01:29

The Geography of Diabetes data visualization allows to explore the magnitude and spatial distribution of Diabetes across US Counties. It was created by Annette Greiner using the core set of indicators from the Food Environment Atlas, US Department of Agriculture (USDA).

Virginia Earthquake, Aug 23, 2011

on Sat, 08/27/2011 - 01:56

An strong earthquake was felt in Washington Metropolitan Area this Tuesday August 23rd, 2011. According to reports, it was felt in most of the Mid Atlantic coast from South Carolina to Massachusetts.

A data visualization of the Virginia Earthquake 2011 is presented below. A dashboard including three views dynamically linked, two maps illustrating the location of the earthquake and aftershocks, and a time line chart that presents the moment in which the earthquake and aftershocks occurred.

Source: US Geological Survey (USGS)

More detailed information about the Virginia Earthquake 2011 is

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