Why marks control visual encoding in Tableau - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the mark type to a bar in Tableau.

Tableau

worksheet.markType = '[1]'

Drag options to blanks, or click blank then click option'

Abar

Bcircle

Cline

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'circle' or 'line' which changes the chart type.

Using 'text' which only shows labels, not bars.

Setting the mark type to 'bar' controls the visual encoding to display bars in the chart.

2fill in blank

medium

Complete the code to assign color encoding to the 'Category' field.

Tableau

worksheet.color = '[1]'

Drag options to blanks, or click blank then click option'

ASales

BCategory

CProfit

DRegion

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric fields like 'Sales' or 'Profit' for color encoding without aggregation.

Choosing 'Region' if the question specifies 'Category'.

Assigning 'Category' to color encodes data points by category colors.

3fill in blank

hard

Fix the error in the code to correctly set size encoding to 'Sales'.

Tableau

worksheet.size = '[1]'

Drag options to blanks, or click blank then click option'

A'Sales'

BSales

Csales

D"Sales"

Attempts:

3 left

💡 Hint

Common Mistakes

Passing Sales without quotes causes a reference error.

Using lowercase 'sales' when the field is case-sensitive.

In Tableau scripting, field names must be passed as strings with quotes.

4fill in blank

hard

Fill both blanks to set the mark type to 'circle' and assign 'Profit' to size encoding.

Tableau

worksheet.markType = '[1]'
worksheet.size = '[2]'

Drag options to blanks, or click blank then click option'

Acircle

Bbar

CProfit

DSales

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up 'bar' and 'circle' for mark type.

Assigning 'Sales' instead of 'Profit' for size.

Setting mark type to 'circle' changes the shape, and assigning 'Profit' to size encodes data size by profit.

5fill in blank

hard

Fill all three blanks to set mark type to 'line', assign 'Region' to color, and 'Sales' to size encoding.

Tableau

worksheet.markType = '[1]'
worksheet.color = '[2]'
worksheet.size = '[3]'

Drag options to blanks, or click blank then click option'

Abar

BRegion

CSales

Dline

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bar' instead of 'line' for mark type.

Swapping 'Region' and 'Sales' in color and size.

Mark type 'line' creates a line chart, 'Region' colors by region, and 'Sales' sizes marks by sales amount.