Dynamically change legend on Shape map based on selections in slicers

[AnzBhy]

I have a table called Data with many columns. I have setup the dashboard so far so that changes on the slicers in this way:

1. Slicer1: Variant will choose a column from Data corresponding to variant

2. Slicer2: Group, Measure_Name - allows the user to select which of the particular numeric columns in the Data table to display on the graphs. I did this using a bit of an ugly work-around with SWITCH.

3. Slicer3: Attribute, Value, Country - will show the particular regions (countries)

So far my line graph responds nicely to changes in any of the slicers and the shape map responds to changes in the regions. See below.

My raw Data table looks like this:

What im trying to do is change the Legend of the Shape Map so that depending on my selections in each of the 3 slicers I will get a table of |Countries (corresponding to slicer 3)|Average of Metric (corresponding to slicer 2)| which I hope I will be able to get appropriate shading in the Shape Map.

I've tried the DAX code below to create the table but dont seem to be getting anywhere - really any help with be HUGELY appreciated please as Im really new to Power BI.

table2 =

VAR _DS0FilterTable0 = SELECTEDVALUE('Data'[Variant])

VAR _DS0FilterTable1 = SELECTEDVALUE('Measure_Selection1'[Group])

VAR _DS0FilterTable2 = SELECTEDVALUE('Measure_Selection1'[Data_Field])

VAR _DS0FilterTable3 = SELECTEDVALUE('Data'[Year])

// Ensure _DS0FilterTable0 is defined correctly

VAR _SelectedYears = VALUES('Data'[Year])

VAR _MaxYear = MAXX(

    FILTER(ALL('Data'[Year]), 'Data'[Year] IN SELECTCOLUMNS(SUMMARIZE(_SelectedYears, 'Data'[Year]), "Year", 'Data'[Year])),

    'Data'[Year]

)

VAR _MinYear = MINX(

    FILTER(ALL('Data'[Year]), 'Data'[Year] IN SELECTCOLUMNS(SUMMARIZE(_SelectedYears, 'Data'[Year]), "Year", 'Data'[Year])),

    'Data'[Year]

)

// Define selected metric based on user selection

VAR _Selected_Metric =

    IF(

        HASONEVALUE(Measure_Selection1[Measure_Name]),

        SWITCH(

            VALUES(Measure_Selection1[Measure_Name]),

            "Tot_Pop_1Jan_000s",SUM(Data[Tot_Pop_1Jan_000s]),"Tot_Pop_1Jul_000s",SUM(Data[Tot_Pop_1Jul_000s]),"Male_Pop_1Jul_000s",SUM(Data[Male_Pop_1Jul_000s]),"Female_Pop_1Jul_000s",SUM(Data[Female_Pop_1Jul_000s]),"Pop_Density",SUM(Data[Pop_Density]),"Pop_Sex_Ratio",SUM(Data[Pop_Sex_Ratio]),"Median_Age",SUM(Data[Median_Age]),"Nat_Change",SUM(Data[Nat_Change]),"Nat_Change_Rate",SUM(Data[Nat_Change_Rate]),"Pop_Change_000s",SUM(Data[Pop_Change_000s]),"Pop_Growth_Rate",SUM(Data[Pop_Growth_Rate]),"Births_000s",SUM(Data[Births_000s]),"Births_Women15_19_000s",SUM(Data[Births_Women15_19_000s]),"Crude_Birth_Rate",SUM(Data[Crude_Birth_Rate]),"Tot_Fertility_Rate",SUM(Data[Tot_Fertility_Rate]),"Net_Production_Rate",SUM(Data[Net_Production_Rate]),"Mean_Childbearing_Age",SUM(Data[Mean_Childbearing_Age]),"Pop_Sex_Ratio_At_Birth",SUM(Data[Pop_Sex_Ratio_At_Birth]),"Tot_Deaths_000s",SUM(Data[Tot_Deaths_000s]),"Male_Deaths_000s",SUM(Data[Male_Deaths_000s]),"Female_Deaths_000s",SUM(Data[Female_Deaths_000s]),"Crude_Death_Rate",SUM(Data[Crude_Death_Rate]),"Life_Exp_At_Birth",SUM(Data[Life_Exp_At_Birth]),"Male_Life_Exp_At_Birth",SUM(Data[Male_Life_Exp_At_Birth]),"Female_Life_Exp_At_Birth",SUM(Data[Female_Life_Exp_At_Birth]),"Life_Exp_At_15Yrs",SUM(Data[Life_Exp_At_15Yrs]),"Male_Life_Exp_At_15Yrs",SUM(Data[Male_Life_Exp_At_15Yrs]),"Female_Life_Exp_At_15Yrs",SUM(Data[Female_Life_Exp_At_15Yrs]),"Life_Exp_At_65Yrs",SUM(Data[Life_Exp_At_65Yrs]),"Male_Life_Exp_At_65Yrs",SUM(Data[Male_Life_Exp_At_65Yrs]),"Female_Life_Exp_At_65Yrs",SUM(Data[Female_Life_Exp_At_65Yrs]),"Life_Exp_At_80Yrs",SUM(Data[Life_Exp_At_80Yrs]),"Male_Life_Exp_At_80Yrs",SUM(Data[Male_Life_Exp_At_80Yrs]),"Female_Life_Exp_At_80Yrs",SUM(Data[Female_Life_Exp_At_80Yrs]),"Infant_Deaths_Under1Yr_000s",SUM(Data[Infant_Deaths_Under1Yr_000s]),"Infant_Mortality_Rate",SUM(Data[Infant_Mortality_Rate]),"Births_Surviving_1Yr",SUM(Data[Births_Surviving_1Yr]),"Deaths_Under_5Yrs_000s",SUM(Data[Deaths_Under_5Yrs_000s]),"Mortality_Under_5Yrs",SUM(Data[Mortality_Under_5Yrs]),"Mortality_Under_40Yrs",SUM(Data[Mortality_Under_40Yrs]),"Male_Mortality_Under_40Yrs",SUM(Data[Male_Mortality_Under_40Yrs]),"Female_Mortality_Under_40Yrs",SUM(Data[Female_Mortality_Under_40Yrs]),"Mortality_Under_60Yrs",SUM(Data[Mortality_Under_60Yrs]),"Male_Mortality_Under_60Yrs",SUM(Data[Male_Mortality_Under_60Yrs]),"Female_Mortality_Under_60Yrs",SUM(Data[Female_Mortality_Under_60Yrs]),"Mortality_Under_15_50Yrs",SUM(Data[Mortality_Under_15_50Yrs]),"Male_Mortality_Under_15_50Yrs",SUM(Data[Male_Mortality_Under_15_50Yrs]),"Female_Mortality_Under_15_50Yrs",SUM(Data[Female_Mortality_Under_15_50Yrs]),"Mortality_Under_15_60Yrs",SUM(Data[Mortality_Under_15_60Yrs]),"Male_Mortality_Under_15_60Yrs",SUM(Data[Male_Mortality_Under_15_60Yrs]),"Female_Mortality_Under_15_60Yrs",SUM(Data[Female_Mortality_Under_15_60Yrs]),"Net_Migrants_000s",SUM(Data[Net_Migrants_000s]),"Net_Migration_Rate",SUM(Data[Net_Migration_Rate]),blank()

        )

    )

// Calculate average of selected metric for each region/subregion

VAR Avg_Metric_Table =

    SUMMARIZE(

        FILTER(

            ALL('Data'),

            'Data'[Variant] = _DS0FilterTable0 && 'Data'[Year] >= _MinYear && 'Data'[Year] <= _MaxYear

        ),

        'Data'[Region, subregion, country or area *],

        "Average_Selected_Metric", AVERAGEX(VALUES('Data'[Region, subregion, country or area *]), _Selected_Metric)

    )

RETURN

    Avg_Metric_Table

[amitchandak]

@AnzBhy , Are you using field Parameters? because when you use a field parameter, It will change the title when change the measure or axis slicer

A Quick way for Dynamic Visuals: https://amitchandak.medium.com/power-bi-field-parameters-a-quick-way-for-dynamic-visuals-fc4095ae9af...
Measure Slicer and Axis/Dimension slicer: https://youtu.be/lqF3Wa1FllE
Switch TOPN with Field Parameters: https://amitchandak.medium.com/switch-topn-with-field-parameters-299a0ae3725f

[AnzBhy]

Hi, appreciate you getting back to me. I am able to get the slicer of the measures as below:

The above gives me this slicer which allows me to select the column I want to use in the line graph via:

I then use SWITCH to select what values to display in the line graph as below: 

Selected_Metric_Sum =

IF(HASONEVALUE(Measure_Selections[Measure_Name]),

 SWITCH(VALUES(Measure_Selections[Measure_Name]),

"Tot_Pop_1Jan_000s",SUM(Data[Tot_Pop_1Jan_000s]),"Tot_Pop_1Jul_000s",SUM(Data[Tot_Pop_1Jul_000s]),"Male_Pop_1Jul_000s",SUM(Data[Male_Pop_1Jul_000s]),"Female_Pop_1Jul_000s",SUM(Data[Female_Pop_1Jul_000s]),"Pop_Density",SUM(Data[Pop_Density]),"Pop_Sex_Ratio",SUM(Data[Pop_Sex_Ratio]),"Median_Age",SUM(Data[Median_Age]),"Nat_Change",SUM(Data[Nat_Change]),"Nat_Change_Rate",SUM(Data[Nat_Change_Rate]),"Pop_Change_000s",SUM(Data[Pop_Change_000s]),"Pop_Growth_Rate",SUM(Data[Pop_Growth_Rate]),"Births_000s",SUM(Data[Births_000s]),"Births_Women15_19_000s",SUM(Data[Births_Women15_19_000s]),"Crude_Birth_Rate",SUM(Data[Crude_Birth_Rate]),"Tot_Fertility_Rate",SUM(Data[Tot_Fertility_Rate]),"Net_Production_Rate",SUM(Data[Net_Production_Rate]),"Mean_Childbearing_Age",SUM(Data[Mean_Childbearing_Age]),"Pop_Sex_Ratio_At_Birth",SUM(Data[Pop_Sex_Ratio_At_Birth]),"Tot_Deaths_000s",SUM(Data[Tot_Deaths_000s]),"Male_Deaths_000s",SUM(Data[Male_Deaths_000s]),"Female_Deaths_000s",SUM(Data[Female_Deaths_000s]),"Crude_Death_Rate",SUM(Data[Crude_Death_Rate]),"Life_Exp_At_Birth",SUM(Data[Life_Exp_At_Birth]),"Male_Life_Exp_At_Birth",SUM(Data[Male_Life_Exp_At_Birth]),"Female_Life_Exp_At_Birth",SUM(Data[Female_Life_Exp_At_Birth]),"Life_Exp_At_15Yrs",SUM(Data[Life_Exp_At_15Yrs]),"Male_Life_Exp_At_15Yrs",SUM(Data[Male_Life_Exp_At_15Yrs]),"Female_Life_Exp_At_15Yrs",SUM(Data[Female_Life_Exp_At_15Yrs]),"Life_Exp_At_65Yrs",SUM(Data[Life_Exp_At_65Yrs]),"Male_Life_Exp_At_65Yrs",SUM(Data[Male_Life_Exp_At_65Yrs]),"Female_Life_Exp_At_65Yrs",SUM(Data[Female_Life_Exp_At_65Yrs]),"Life_Exp_At_80Yrs",SUM(Data[Life_Exp_At_80Yrs]),"Male_Life_Exp_At_80Yrs",SUM(Data[Male_Life_Exp_At_80Yrs]),"Female_Life_Exp_At_80Yrs",SUM(Data[Female_Life_Exp_At_80Yrs]),"Infant_Deaths_Under1Yr_000s",SUM(Data[Infant_Deaths_Under1Yr_000s]),"Infant_Mortality_Rate",SUM(Data[Infant_Mortality_Rate]),"Births_Surviving_1Yr",SUM(Data[Births_Surviving_1Yr]),"Deaths_Under_5Yrs_000s",SUM(Data[Deaths_Under_5Yrs_000s]),"Mortality_Under_5Yrs",SUM(Data[Mortality_Under_5Yrs]),"Mortality_Under_40Yrs",SUM(Data[Mortality_Under_40Yrs]),"Male_Mortality_Under_40Yrs",SUM(Data[Male_Mortality_Under_40Yrs]),"Female_Mortality_Under_40Yrs",SUM(Data[Female_Mortality_Under_40Yrs]),"Mortality_Under_60Yrs",SUM(Data[Mortality_Under_60Yrs]),"Male_Mortality_Under_60Yrs",SUM(Data[Male_Mortality_Under_60Yrs]),"Female_Mortality_Under_60Yrs",SUM(Data[Female_Mortality_Under_60Yrs]),"Mortality_Under_15_50Yrs",SUM(Data[Mortality_Under_15_50Yrs]),"Male_Mortality_Under_15_50Yrs",SUM(Data[Male_Mortality_Under_15_50Yrs]),"Female_Mortality_Under_15_50Yrs",SUM(Data[Female_Mortality_Under_15_50Yrs]),"Mortality_Under_15_60Yrs",SUM(Data[Mortality_Under_15_60Yrs]),"Male_Mortality_Under_15_60Yrs",SUM(Data[Male_Mortality_Under_15_60Yrs]),"Female_Mortality_Under_15_60Yrs",SUM(Data[Female_Mortality_Under_15_60Yrs]),"Net_Migrants_000s",SUM(Data[Net_Migrants_000s]),"Net_Migration_Rate",SUM(Data[Net_Migration_Rate]),blank()))

The issue I have is that I dont know how to link the Legend field of my shape map to the slicer . I cant drag 

Measure_Selections table into the legends field of the map and when I try to drag the Measure_Selections table with the field to which the measures slicer refers I get the following error "an't determine a relationship between two or more fields shape map"