In response to an issue I raised earlier in Juneļ¼š

http://vizdiff.blogspot.com/2014/06/range-definiton-bug-in-color-editor.html

The bug is announced as fixed in Tableau Desktop 8.2.2:

http://www.tableausoftware.com/support/releases/8.2.2

"When the center value of a diverging color palette was set to a higher value than the end value, the entire color range displayed as the end color, rather than as a gradation."

I verified it in Desktop 8.2.2, Tableau Public 8.2.2, Tableau Server 8.2.2 and it looks good. Note that the simple test table contains all 0s.

But I found two bugs in Tableau Public Server and Color Editor.

1.When published to the Tableau Public server, it is still not rendered correctly! It's all green. Download the workbook and check by yourself.

My earlier post on this subject seems really popular. I am a little surprised to say the least.

Here is another technique: Right-click in the Measures shelf and hide unused Measures. The unused measures will disappear from your quick filter. You are done!

Wait, you may say: There are some measures that I still use. But I don't want them to appear in the quick filter.
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I struggled about whether to attend the breakfast session at Westin St Francis in downtown San Francisco at 7:30am. I am glad I made it. The chilly morning breeze helped clear my head. It is always chilly in the city and morning is a little chillier.

The session was led by the director of global value... talking about what values splunk's customers got in terms of money, personnel and time, mostly in savings. It's a great talk peppered with various use cases by the customers.

[Note: Part 1 is at http://vizdiff.blogspot.com/2014/08/revisit-of-rank-functions-in-tableau.html]

In my last blog on rank functions in Tableau, I found out that the chart of rank() and rank_percentile() can exactly overlap each other, given the same scale. But they have totally different notations and usage.

Rank() is typically used in competitive events. So it has got another name called competitive rank.
1

[Note: Part 2 is at http://vizdiff.blogspot.com/2014/08/revisit-of-5-rank-functions-in-tableau.html]

There are multiple ways to rank data. Tableau provides five different rank functions.

We can call the rank functions from 3 places:

Calculated Field Table Calculation  Right-Click* Menu *Right-click a measure.

1.Calculated field

In creating a calculated field, we can use rank functions which are part of the table calculations.
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In my last post, I used a dynamic pie chart to visualize the revenue share between top N teams and the rest of the league. It gives a pretty strong visual cue about the share size for a given N. We can set any N (between 1-19) to see different shares.

Yet, there is another powerful way to present the revenue share between top N teams and the rest for all the N's at once. It's the Pareto Chart.

In a comment by TarikB at the end of Andy Kriebel's recent article, Tarik would like to see the revenue share of the top teams versus that of the rest of the league. It is where I got the inspiration to design a dynamic pie chart. Here is the result with the following features:

showing the top N teams in regular slices. showing the rest of the teams in a single slice: "Others". N is a parameter that one can pick between 1-19. pie slices are sorted clockwise and "Others" is the last slice.

This dashboard is an attempt to visualize the TV and commercial revenue spread among the 20 teams. It also tries to provide insights into the following aspects:

- Revenue composition

- Top team revenue share (Pareto chart)

- Revenue rankings vs league position

The revenue data is provided by the Premier League. The link to the dashboard is here: http://t.cn/RPx3Eqh

1.Revenue Composition

Each team gets 5 different revenues. 3 of them are equal among all the clubs.
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