Power BI中的相关主题

Question

I have the following data model:

topics     topics_articles     articles
-------    ---------------     ---------
id         topic_id            id
           article_id

With topic_id and article_id having bi-directional relationships respectively with topics[id] and articles[id] .

I'm trying to create a new table to show related topics:

• Let's say I filter the report on topic A
• I get all the articles with that topic
• then I get all the topics related to those articles

So far I have this:

 topics_related =
 CALCULATETABLE(articles_topics, UNION(VALUES('articles'[id]), VALUES('articles_topics'[article_id])))

But no matter what I try, topics_related always contains all the topics.

Could you give me some pointers as to how creating that calculated table please?

Answer 1

A calculated table cannot be responsive to slicers unless is computed it within a measure since they are computed only once each time the data is refreshed.

If your tables are related as you described, then you should be able to simply create a slicer on the topic and a table visual with the articles and the table should automatically do the filtering you've described in response to the slicer choices.