This view displays the sum of the sales for each year as a bar chart. You can create the view with the following procedure.
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Place the Order Date dimension on the Columns shelf.
The date is automatically aggregated by year and headers are created with labels given by the dimension member names.
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Place the Sales measure on the Rows shelf.
The measure is automatically aggregated as a summation and an axis is created with a label given by the name of the field.
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Select Bar from the Mark menu.
Tableau automatically selects Line as the mark type because a date dimension is displayed. If a different dimension was used that was not a date, Tableau would have automatically selected Bar. For this particular example, the Bar mark makes it easier to analyze the data.
The view is shown below.
The marks are vertical because the axis is vertical. The length of each mark represents the sum of the sales for each year. For example, the sum of the sales in 2008 is $3,436,536.
You can display this number with tool tips by placing the mouse cursor over the mark.
