Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
2 years ago
Solved

Fix duplicate data

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. 

  • dm-p's avatar
    dm-p
    2 years ago

    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

6 Replies

  • lbendlin's avatar
    lbendlin
    Super User
    2 years ago

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

    • Anonymous's avatar
      Anonymous
      Not applicable
      2 years ago

      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

      • lbendlin's avatar
        lbendlin
        Super User
        2 years ago

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