Represent null data as zero in line chart

[Anonymous]

Hello, 

I'm building a line chart that represents the evolution of the count of some Value (y axis) depending on levels. As you can see: 

- The x axis starts in February 2021, with Value=3 in level 0 (thus, there are three items with value 0). There are no items in level 1 and 2.

- In April 2021, data with 1 and 2 level appears, and data with level 0 decreases. 

What I'd like to obtain is a line chart where level 1 and 2 are represented from february 2021, with value=0. Graphically, this is my desired output:

I've tried adding "+0"  to the measure that I've configured in my  y axis, but it's been unsuccessfull. How could I achieve this? 

Many thanks for your help.

Regards.

[Jihwan_Kim]

Hi, @Anonymous 

Please try to use the date (or month) from your Dim-Calendar table, not from your fact table.

I am not sure about how your data model looks like, but try to use Dim-calendar table in X-axis with the same measure, ( adding +0)

Hi, My name is Jihwan Kim.

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[Hank_]

Hi! Maybe substitute null values with zeros in the query?

Isn't it more efficient to do this in M rather than DAX in this case?

[Greg_Deckler]

@Anonymous Not sure why the +0 is not working. You might try something like:

Value =
  VAR __Value = SUM('Table'[Column])
RETURN
  IF(ISBLANK(__Value),0,__Value)

Perhaps turn on "show items with no data"?

Not really enough information to go on otherwise, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.

[Fowmy]

@Anonymous 

Can you share a sample of your data?

[Anonymous]

Hi @Fowmy , I'm not able to attach a pbix or xlsx file, but, in order to check if this is possible, I'm using a small set of data from CSV, with this content: 

ID;Level;Date
33;0;26/02/2021
33;0;31/03/2021
33;0;23/04/2021
15;1;30/01/2021
15;1;26/02/2021
15;2;31/03/2021
15;2;23/04/2021
92;1;26/02/2021
92;1;31/03/2021
92;1;23/04/2021

This is my visual:

Where this is my measure Value:

Value =

VAR __Value = COUNT(Hoja1[ID])

RETURN

IF(ISBLANK(__Value),0,__Value)

And this, my desired  output:

Hope this is enough 🙂