1 4 5 6 7 8 113 Replies Latest reply on Feb 13, 2019 7:29 PM by Selvi velraj Go to original post
• ###### 90. Re: Sankey diagram made of dynamically generated polygons

Hi Olivier,

Such a great introduction to Sankey in Tableau.

I just have one clarification to ask:

Can you please explain me about the column "Size" (indicator), So when I changed those values to 1 for all the rows. I don't see any change in the pattern of Sankey. I am new to Sankey plots in Tableau, So if you could please let me know what's the role of "size" here would be of great help.

Harish

• ###### 91. Re: Sankey diagram made of dynamically generated polygons

Hi Olivier,

Merci Olivier !

Just one question - Please could you explain why we do it the Step 3

I tried to understand this condition below:

- Create an "Agg Step 1" dimension: this should be

IF [Top Step 1]* THEN [Step 1] ELSE 'x Other' END

K.

• ###### 92. Re: Sankey diagram made of dynamically generated polygons

I believe this helps in aggregating those below the number of groups you choose to aggregate.

• ###### 93. Re: Sankey diagram made of dynamically generated polygons

Thank You so much, Oliver for detailed steps in building this awesome Viz!

Is there a way to show % of total that is split inside each dimension of Step 1. In your Viz Flow size shows % of Total Step 1

40.18% shows % total of total step 1 but is it possible to show % of Accueil split into Step 2 dimensions

• ###### 94. Re: Sankey diagram made of dynamically generated polygons

Hi Olivier,

is it possible to get the sheets for this dashboard? I want to create a sankey like yours and if there is way to access the sheets that is highly appreciated. Thanks.

• ###### 95. Re: Sankey diagram made of dynamically generated polygons

Great post I allmost got it, but cant get the addressing to work properly.

When I set the Default Tableau Calculation addressing, eg compute along "level 0", "level 1", "level 2", at the "level 0" ) for node 0 position, all the other node position calculations change to the same adressing. Anyone knows what I' doing wrong?

Kinde regards

• ###### 96. Re: Sankey diagram made of dynamically generated polygons

Anyone else had issues with color changes when publishing?  My viz looks great on desktop, but when I publish the colors get switched...

• ###### 97. Re: Sankey diagram made of dynamically generated polygons

and if it helps, here is my split screen.  On the right is what I saved, and on the left, what is published

• ###### 98. Re: Sankey diagram made of dynamically generated polygons

Not sure if you are still here..hope you are, so you get my merci beaucoup pour le travaille incroyable (and pardon for my appalling French).  Last day of the working year, and I am going out on a high because I can now do the diagrams I wanted to be able to do -- all because of you.  Thank you for sharing so generously, and explaining it so wonderfully that even I can follow.

• ###### 99. Re: Sankey diagram made of dynamically generated polygons

You are welcome Ian Holder !

Olivier

• ###### 100. Re: Sankey diagram made of dynamically generated polygons

Hello Olivier, this is so beautiful I couldn't help but try to use it with my own data. I have it working but face the following issue: I am showing inflows and outflows from homelessness and want to show it monthly (it works) and over the course of several months to a year (this doesn't work). The problem I have is that rather than following a particular person through the time period ie. in January they were entering the list and in December they were housed - so If I pick Jan to December, I would like to see Entering the List as Step 1 and Housed as Step 2 and only have 1 entry for that person. What I am seeing instead is a sum of months, so 11 entries for that person as the monthly inflows and outflows are added to each other. Can you please take a look and make a suggestion as to how I can get around this issue? Thank you in advance. Also, I am looking for a way to colour code by inflow or outflow categories and would welcome some tips if you have them.

• ###### 101. Re: Sankey diagram made of dynamically generated polygons

Thanks Olivier, this was really helpful !

I will be using this to represent migration flows between specific countries.

For some reason, I had to reverse the "Curve Polygon" scale

Encore merci infiniment !

Andreas

• ###### 102. Re: Sankey diagram made of dynamically generated polygons

Vanessa Gray can you explain what your error was?

• ###### 103. Re: Sankey diagram made of dynamically generated polygons

The Sankey graph did not fit correctly between both "bars", its polygons were reversed from top to bottom, reversing the scale solved the problem and now all three graphs match. I must have made an error somewhere in the process of constructing the visualization.

I then also needed to order the polygons by decreasing frequency.

You can have a look at the results here

Best regards from the Alps

Andreas

• ###### 104. Re: Sankey diagram made of dynamically generated polygons

Just wanted to say thanks for this detailed instruction. I got it working for my own data after about a day of work. I also encountered the issue where the bars didn't curve but getting rid of all the custom sorts on the table calculations worked great!

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