COMM 205 Unit 4

Question 1

Tableau File Types

Answer 1

Tableau workbook (.twb)
 Stores a visualization without source data
Tableau data extract (.tde)
 Stores Tableau data as filtered and aggregated
extract
Tableau packaged workbook (.twbx)
 Stores extracted data and visualizations for viewing in
Tableau

Question 2

Dimensions vs. Measures

Answer 2

When you first connect to a data source, Tableau assigns any fields that contain:
 discrete categorical information (e.g. fields where the values are Strings or Boolean values) to the DIMENSIONS area in the Data pane.
 quantitative, numerical information (i.e. fields where the values are numbers) to the MEASURES area in the Data pane.

Question 3

When you drag a field from the Measures area:

Answer 3

When you drag a field from the MEASURES area to Rows or Columns, Tableau creates a CONTINUOUS AXIS shown as a green pill

Question 4

When you drag a field from the Dimensions area:

Answer 4

When you drag a field from the DIMENSIONS area to Rows or Columns, Tableau creates COLUMN OR ROW HEADERS (DISCRETE) shown as a blue pill