topic Re: Fix duplicate data in Custom Visuals Development Discussion

Fix duplicate data

Anonymous — Mon, 08 Jan 2024 05:24:11 GMT

Hello everyone. I have a bit of a duplicate data issue per below.
I create a custom visuals and uing data like this:

and this is my capabilities

"dataRoles": [

{

"name": "rows",

"displayName": "Rows",

"displayNameKey": "Visual_Rows",

"kind": "Grouping"

{

"name": "values",

"displayName": "Values",

"displayNameKey": "Visual_Values",

"kind": "Grouping"

}

"dataViewMappings": [

{

"table": {

"rows": {

"select": [

{

"for": {

"in": "rows"

}

{

"for": {

"in": "values"

}

]

}

but my data I get when console logs has the duplicate elements in value removed when I select Brand and sales.
[
["SamSung",10],
["SamSung",11],
["SamSung",12],
["SamSung",13],
["SamSung",15],
["SamSung",16],
["SamSung",17]
]
How can i fix this.

Re: Fix duplicate data

lbendlin — Wed, 10 Jan 2024 23:14:04 GMT

Please provide a more detailed explanation of what you are aiming to achieve. What have you tried and where are you stuck?

Re: Fix duplicate data

Anonymous — Thu, 11 Jan 2024 03:13:35 GMT

Hello, I want to create a table in cusom visuals and display my information. I choose dataViewMappings as table and dataRoles with kind as row and value. My data has 9 rows and there is overlap, data sales duplicated in 10$ and 11$, When I drag brand into rows and Sales into value, the data returned to me is 7 rows instead of 9. The 2 duplicate values 10$ and 11$ have disappeared. I want to ask if there is any way I can get all data without removing duplicates

Re: Fix duplicate data

lbendlin — Thu, 11 Jan 2024 12:24:04 GMT

To prevent automatic aggregation you need to add a unique field to your visual, like a row index.

Re: Fix duplicate data

Anonymous — Thu, 11 Jan 2024 14:04:26 GMT

What you mean is adding a unique field to data or my visuals, is there any way to set the data return to not automatically delete duplicate values? I want when I drag brand into rows and Sales into value, the data will be displayed in full 9 rows like in excels data, is there any way?

Re: Fix duplicate data

dm-p — Fri, 12 Jan 2024 00:00:36 GMT

Hi @Anonymous

@lbendlin's answer is correct. You must include a data role in your capabilities that encourages users to add a unique identifier row to the visual dataset to make Power BI project rather than aggregate. Power BI will always aggregate to the highest possible level based on unique values in the dataset (for columns). The Violin Plot custom visual needs this, and I wrote a blog post explaining the concept with some visual aids, which should help clarify the approach you will need to take.

Regards,

Daniel

Re: Fix duplicate data

Anonymous — Fri, 12 Jan 2024 08:57:26 GMT

thank you @dm-p and @lbendlin , it work for me