Provide example of many-to-many relationship

[kmax12]

In situations where we want to run Deep Feature Synthesis for a dataset that has a many-to-many relationship we need to create an extra association entity to handle the mapping. Featuretools supports this use case, but it could be more clear to users of the library if we provided an example either in the documentation on in a demo like the ones we have on the website.

[dylanking42]

I would like to officially ask for this, or even just have a better description of what "association entity" would mean.

Considering that the documentation says "When specifying relationships we list the variable in the parent entity first. Note that each ft.Relationship must denote a one-to-many relationship rather than a relationship which is one-to-one or many-to-many." it would make things a lot clearer.

A full fledged example like the demo notebooks is not super necessary, but I would like to see a simple example of the many-to-many organization.

[jbdouet]

Any update on this use case ?

[rightx2]

Any update on this use case or example notebook??

[gsheni]

@asniyaz Let's prioritize this issue and put it in an upcoming sprint.