Visualization using Tableau

Tableau is a business intelligence software that allows anyone to connect easily to data, visualize and create interactive dashboards. Tableau is quite simple to use, characterized by a drag and drop interface. It automatically displays column names, cleans data of any discrepancy and provides for an easy learning experience.

Data Exploration in Tableau

The Tableau interface has menus at the top. Below it is the toolbar, with buttons like undo and save. Tableau worksheets are not automatically saved, so worksheets need to be saved periodically. The data window is to the left of the screen. On the data tab, the top lists all open data connections, and depending on which one is selected, the fields from that data source are listed below, broken out into and measures. The difference between dimensions and measures is that dimensions contain all those attributes or columns whose values are categorical; for example, gender, i.e. Male/Female. When the values are quantitative, they get assigned to the measures tab. For example, sales figures, population, percentages, and so on. Visualizations are created on measures based on the dimensions. The interface also consists of shelves where various variables and parameters can be dragged and dropped. These shelves are of rows, columns, filters, marks, and pages.

Baldev Bhatt