Why choose Complete Tableau Training by Freakalytics?
A recent attendee’s perspective

  This review of our 4 day training series was written on LinkedIn by a recent public training attendee, Danyelle.  She works at the US Department of Health and Human Services as a Senior Data Advisor.  I had the great pleasure of speaking with her  outside of the class and was fascinated to hear how … Read more

Quick tutorial on reference lines, bands and distributions – visual analytics best practices

The following article features Tableau 6

Reference lines, bands or distributions may be added to your views to emphasize particular values or areas that may be useful in interpreting your data. In particular, when comparing multiple groups or categories of data, reference lines and bands provide immediate feedback on the overall differences between the groups.

Reference lines

Reference lines are vertical or horizontal lines displayed on your view that mark requested values such as average, median, minimum, maximum, sum, total and constants (such as a line that separates the data points as being above or below a target). They can be added on any continuous axis.

1) Open the Sample - Coffee Chain (Access) data source included by default with Tableau 6

2) Place Sales on the Columns shelf and change the aggregate to Average.

3) Place Product on the Rows shelf,
     State and Date on the Level of Detail shelf
     and format
Date to ‘MMMM YYYY’.

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