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Software ==>	DAX (59 exercises)
Topic ==>	The CALCULATE function (16 exercises)
Level ==>	Harder than average
Subject ==>	Power BI training

Sort Bake-Off viewing figures using the RANKX function

This exercise is provided to allow potential course delegates to choose the correct Wise Owl Microsoft training course, and may not be reproduced in whole or in part in any format without the prior written consent of Wise Owl.

Before you can do this exercise, you'll need to download and unzip this file .

Open the Power BI file in the above folder, and create a measure (not a calculated column - that would be too easy) to rank each series by its viewing figures to get:

The ranking more or less matches the series number, but there's a blip where GBBO went over to Channel 4.

This exercise may look deceptively easy, but it's probably the hardest one in the set!

Save this as Rank expression, then close it down.

You can unzip this file to see the answers to this exercise, although please remember this is for your personal use only.

You can find other training resources for the subject of this exercise here:

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From:	Stefan
When:	29 Oct 24 at 13:17

It could be also implemented like this probably? =>

Ranking Other Option =

var tabSeries =

all(

Series[Series]

)

var vViewers = SELECTEDVALUE(Series[Viewers (m)])

return

CONCATENATEX(

tabSeries

, [Series] & " - " & var mySeries = [Series] return calculate(sum(Series[Viewers (m)]), REMOVEFILTERS(), Series[Series] = mySeries)

, UNICHAR(10)

, var mySeries = [Series] return calculate(sum(Series[Viewers (m)]), REMOVEFILTERS(), Series[Series] = mySeries)

, ASC

)

rankx(

tabSeries

, var mySeries = [Series] return calculate(sum(Series[Viewers (m)]), REMOVEFILTERS(), Series[Series] = mySeries)

, vViewers

, ASC

)

From:	richardh87
When:	15 Sep 23 at 14:13

Hi, I'm confused as to why the lowest viewing figure is ranked 1st instead of 8th, etc. Shouldn't it be the other way around?

From:	Andy B
When:	18 Sep 23 at 19:47

I suspect you're probably right! Feel free to change the sort order from ascending to descending when doing the exercise.

From:	amadeus21
When:	02 May 21 at 18:42

The answer file for this exercise is not the correct one.
Thank you for your help!

From:	Andy B
When:	03 May 21 at 15:40

I've corrected this now - thanks.

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EXERCISE TOPIC

POWER BI EXERCISES

DAX EXERCISES

Sort Bake-Off viewing figures using the RANKX function

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