Data visualization with Tableau?

Tableau is...

a visual analytics platform transforming the way we use data to solve problems—empowering people and organizations to make the most of their data.

Creation

The company's founders, Christian Chabot, Pat Hanrahan and Chris Stolte, were researchers at the Department of Computer Science at Stanford University. They specialized in visualization techniques for exploring and analyzing relational databases and data cubes and started the company as a commercial outlet for research at Stanford from 1999 to 2002.

Chris Stolte

Christian Chabot

Pat Hanrahan

Gartner square

Gartner Magic Quadrant research methodology provides a graphical competitive positioning of four types of technology providers in fast-growing markets: Leaders, Visionaries, Niche Players and Challengers.

Tableau is a leader in the BI market alongside Microsoft.

Let's start

Components

A worksheet contains a single view along with shelves, cards, legends, and the Data and Analytics panes in its side bar.

A dashboard is a collection of views from multiple worksheets. The Dashboard and Layout panes are available in its side bar.

A story contains a sequence of worksheets or dashboards that work together to convey information. The Story and Layout panes are available in its side bar.

Type data

Int
Date and time
Boolean
Float
String
Geographic

Knowing the data

Data

The data comes from the direction of atmospheric monitoring of Mexico City.
The database has 40 stations, 10 pollution parameters, 5 meteorological parameters.
- A station is a physical place where contamination measurements are taken.
There are more than 100 million records.

Pollutants

CO, Carbon Monoxide
SO2, Sulfur Dioxide
NO, Nitrogen Oxides
NO2, Nitrogen Dioxide
O3, Ozone
PM2.5, Particles of less than 2.5 Microns
PM10, Particles of less than 10 Microns

Meteorology

RH, Relative humidity
WSP, Wind Speed
WDR, Wind Direction
TMP, Temperature

Creating our first dashboard