如何在分层类别上应用CONTAINS子句以在Power BI中创建方案分析 [英] How to apply CONTAINS clause on hierarchical categories to create scenario analysis in Power BI

问题描述

以@olly（）&文件： https://pwrbi.com/so_55281950-2/

在示例文件中，将创建假设或场景分析。使用了两个切片器，一个切片器选择方案，另一个切片器选择对象以应用方案。 @Olly提供了一个聪明的解决方案来处理这种情况：

In the sample file a "what if" or scenario analysis is created. Two slicers are used, one which selects the scenario, and another one which selects the objects to apply the scenario on. @Olly provided a clever solution to deal with the situation:

Value + Trend = 
SUMX ( 
    'Demo Fact Table';
    'Demo Fact Table'[Value] * 
        ( 1 +
            IF ( 
                ISFILTERED ( 'Item Chooser'[Item] ) &&
                CONTAINS ( 
                    'Item Chooser';
                    'Item Chooser'[Item];
                    'Demo Fact Table'[Item]
                ) && 
                HASONEVALUE ( 'Scenario - Trend'[Category] );
                VALUES ( 'Scenario - Trend'[Trend Rise] );
                'Demo Fact Table'[trend_default]
            )
        )
    )

在此解决方案的基础上，我一直尝试应用相同的方法逻辑，但要解决我的特定问题。在我的问题中，我不仅有一层类别，而且还有3个层次的层次结构。
如果我的类别具有层次结构，我将如何继续应用相同的解决方案？因此，从我的切片器中，我将选择三项内容：Category1，Year和Category2，这将产生选择的Trend_rise。并将其应用到选定的（第4个切片器）行上，即对（项目A，B或/和C）行应用这一Trend_rise

Building upon this solution I've been trying to apply the same logic, but to my specific problem. In my problem I don't only have a single layer of "categories", but instead hierarchy of 3 levels. How would I go on about applying the same solution if my categories had hierarchies? So from my slicer I would select three things: Category1, Year and Category2, which would yield the trend_rise for the selection. and would apply this apply this trend_rise on the selected (4th slicer) rows, i.e. (item A,B or/and C)

category1      -   Year - Category2 - trend rise
POSITIVE-trends    2018   low         5%
POSITIVE-trends    2018   high        5%
POSITIVE-trends    2017   low         5%
NEGATIVE-trends    2017   very high   -5%
NEUTRAL-trends     2018   low         0%
POSITIVE-trends    2018   high        5%
NEUTRAL-trends     2017   low         5%
NEUTRAL-trends     2016   very high   15%

推荐答案

您只需要对度量进行一点调整即可检查 trend_rise 字段是否具有一个值，如果是，则使用该值，否则使用默认值：

You only need a small tweak to the measure, to check whether the trend_rise field has one value, and if so then use that, otherwise use the default:

Value + Trend = 
SUMX ( 
    'Demo Fact Table',
    'Demo Fact Table'[Value] * 
        ( 1 +
            IF ( 
                ISFILTERED ( 'Item Chooser'[Item] ) &&
                CONTAINS ( 
                    'Item Chooser',
                    'Item Chooser'[Item],
                    'Demo Fact Table'[Item]
                ) && 
                HASONEVALUE ( 'Scenario - Trend'[Trend Rise] ),
                VALUES ( 'Scenario - Trend'[Trend Rise] ),
                'Demo Fact Table'[trend_default]
            )
        )
    )

现在您可以在所有列上使用切片器方案表。

Now you can use slicers on all columns of your Scenario table.

请参见 https://pwrbi.com/ so_55332313 / 用于工作示例文件。

See https://pwrbi.com/so_55332313/ for worked example file.

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