Need help with DAX and visuals to highlight relationships between two values

[Etienne123]

Hi

I have a single table with Value1 and Value2 values, for example:

Value1 - Value2

A - B

B - C

B - D

C - E

The relationships do not apply in a particular direction, and visualising this using something like a Forced-Directed Chart shows the relationships quite well. You can see how it shows all the relationships with B, irrespective as to whether B is in Value1 or Value2.

But the data needs to be filtered by B and if I base the filter on Value1, then I will only see the relationships with C and D, and conversely, if I base the filter on Value2, then I will only see the reltionship with A. I need to be able to select B and show A, C and D.

I think what I need do is to ensure all distinct values across Value1 and Value2 and represented in (for example) Value1 and for all its relationships to appear in Value2. Something like

Value1 - Value2

A - B

B - A

B - C

B - D

C - B

C - E

D - B

E - C

Is this the solution, and could such a dataset be derived?

[Mariusz · Accepted solution]

Hi @Etienne123 

The solution you have suggested is presumably the best, and it's easy to achieve both in Power Query and using DAX.

I've attached a file with both solutions, let me know if you need any explanation.

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

[Etienne123]

Before I saw this, I ended up doing somethikng similar to the PQ soluition, but I really like the DAX UNION method.

Thanks!!

[Mariusz]

Hi @Etienne123 

I'm glad you like it, just a few things to pint out here, the best practice is to do your transformation is PQ.

1. Most of the time your model gets better compression rates than when using DAX columns/tables.
2. You can load only one result table ( saves the model size and removes unnecessary objects )

However, with smaller models, it shouldn't make much of a difference.

Thanks 

Mariusz