cancel
Showing results for
Did you mean:

Find everything you need to get certified on Fabric—skills challenges, live sessions, exam prep, role guidance, and more. Get started

Frequent Visitor

## How to calculate GINI coefficient as a measure

Hi,

I'm wondering if it's possible to calculate the GINI coefficient as a measure.  I have data on panel studies which contains for each study ID the number of answers in that study. So basically one column for study IDs and another for the number of answers. These studies belong in different categories, although one study can belong in many categories at once.. I'd like to use the GINI coefficient to portray how evenly the answers are divided between studies, and then show this on a multi-row card for each category.

1 ACCEPTED SOLUTION
New Member

Hi @palkamj,

This is definitely possible.

If we have a table ("IncomeTable") which contains a column with the data by individual:

And if we add this measure to the data model:

(Note: adjust row 2 so that SELECTCOLUMNS points to the column that contains your data)

``````Gini Coefficient2 =
VAR DataColumn = SELECTCOLUMNS(IncomeTable,"Data",IncomeTable[Income])
VAR Areas_Under_Lorenz_Curve =
DataColumn,
"Area",
VAR IteratingIncome = [Data]
VAR LessOrEqual_Table =
FILTER ( DataColumn, [Data] <= IteratingIncome )
VAR LessOrEqualCummulative =
SUMX ( LessOrEqual_Table, [Data] )
VAR Less_Table =
FILTER ( DataColumn, [Data] < IteratingIncome )
VAR Less_Cummulative =
SUMX ( Less_Table, [Data] )
VAR TotalIncome =
SUMX ( DataColumn, [Data])
VAR NoOfDataPoints =
COUNTROWS ( DataColumn )
RETURN
DIVIDE (
DIVIDE ( LessOrEqualCummulative + Less_Cummulative, 2 ),
TotalIncome * NoOfDataPoints
)
)
RETURN
( 0.5 - SUMX ( Areas_Under_Lorenz_Curve, [Area] ) ) / 0.5``````

Then your report will calculate gini coefficients at any filter level:

@v-shex-msft if you agree with please mark it as the solution to this question

3 REPLIES 3
New Member

Hi @palkamj,

This is definitely possible.

If we have a table ("IncomeTable") which contains a column with the data by individual:

And if we add this measure to the data model:

(Note: adjust row 2 so that SELECTCOLUMNS points to the column that contains your data)

``````Gini Coefficient2 =
VAR DataColumn = SELECTCOLUMNS(IncomeTable,"Data",IncomeTable[Income])
VAR Areas_Under_Lorenz_Curve =
DataColumn,
"Area",
VAR IteratingIncome = [Data]
VAR LessOrEqual_Table =
FILTER ( DataColumn, [Data] <= IteratingIncome )
VAR LessOrEqualCummulative =
SUMX ( LessOrEqual_Table, [Data] )
VAR Less_Table =
FILTER ( DataColumn, [Data] < IteratingIncome )
VAR Less_Cummulative =
SUMX ( Less_Table, [Data] )
VAR TotalIncome =
SUMX ( DataColumn, [Data])
VAR NoOfDataPoints =
COUNTROWS ( DataColumn )
RETURN
DIVIDE (
DIVIDE ( LessOrEqualCummulative + Less_Cummulative, 2 ),
TotalIncome * NoOfDataPoints
)
)
RETURN
( 0.5 - SUMX ( Areas_Under_Lorenz_Curve, [Area] ) ) / 0.5``````

Then your report will calculate gini coefficients at any filter level:

@v-shex-msft if you agree with please mark it as the solution to this question

Helper IV

Hello @Mikelg,
Thanks a lot for sharing,

when applying your formula to a simple test table

 Group Income A 500 B 0 C 0

The results obtain is 0.67 while it should be 1 as all income is detain by one group...
What surprise me is that nowhere in the formula we precise the grouping category
Let me know if i do something wrong or if any fixes need to be done to the formula

Community Support

HI @palkamj,

I don't think it is possible to achieve this requirement, may be your can take a look at below link which told about use excel to achieve gini coefficient.(include coding formula)

Fast Gini – calculating Gini coefficients in Excel efficiently

Regards,
Xiaoxin Sheng

Community Support Team _ Xiaoxin
If this post helps, please consider accept as solution to help other members find it more quickly.

Announcements

#### Europe’s largest Microsoft Fabric Community Conference

Join the community in Stockholm for expert Microsoft Fabric learning including a very exciting keynote from Arun Ulag, Corporate Vice President, Azure Data.

#### Power BI Monthly Update - August 2024

Check out the August 2024 Power BI update to learn about new features.

#### Fabric Community Update - August 2024

Find out what's new and trending in the Fabric Community.

Top Solution Authors
Top Kudoed Authors