Power BI Measure to calculate percentage which changes with filters

问题

I want to create a visualisation from a dataset which shows percentages that change accordingly when filters are used.

I have a dataset like the below but with over 1 million rows of data covering 18 months. All the fields are text except Month which is a date and SUMofAPPTS which is numerical.

SUPP    GEOG1   MODE    STATUS  TYPE    TIME    Month   Day    SUMofAPPTS
AA  00D Face    Att     1       1       Day     2018-06 Sun    12
AA  00D Face    Att     1       1       Day     2018-06 Mon    119
AA  00D Face    Att     1       4       Unk     2018-06 Tues   98
BB  00D Tel     DNA     2       1       Day     2018-06 Weds   98
BB  00D Online  DNA     3       1       Day     2018-06 Thurs  126
CC  00D Face    DNA     1       2       Day     2018-07 Sun    8

I would like a measure which calculates the percentage of SUMofAPPTS by Day and MODE (and the same but for STATUS, TYPE and TIME) which changes when filters are placed on the other fields.

So I think I need to make this simple calculation (which would work in a column if I just wanted to know the percentage per row of the whole dataset) more dynamic so that it works when I filter the data:

PERCENT = 'dataset'[SUMofAPPTS]/SUM('dataset'[SUMofAPPTS])

The end result will be a stacked bar chart with the following attributes:

• Day as the Axis
• PERCENT as the Value
• MODE, STATUS, TYPE or TIME as the Legend
• Ability to filter by one, many or all of the fields except Day and SUMofAPPTS

回答1:

First, create a measure for aggregating SUMofAPPTS:

Total APPTS = SUM(Data[SUMofAPPTS])

Second, create a measure for the percentage:

APPTS % of Selected 
= DIVIDE(
   [Total APPTS],
   CALCULATE([Total APPTS], ALLSELECTED()))

This measure recalculates [Total APPTS] ignoring all filters except those selected by a user (on slicers etc).

Result:

after selections:

Edit

If you need to breakdown by Day (or any other field), you can re-introduce filters like this:

APPTS % of Selected 
= DIVIDE(
   [Total APPTS],
   CALCULATE([Total APPTS], ALLSELECTED(), VALUES(Data[Day])))

来源：https://stackoverflow.com/questions/56272781/power-bi-measure-to-calculate-percentage-which-changes-with-filters