计算 Power BI 中两个筛选器之间的差异

Question

我有一张 Excel 表，其中的数据格式如下

 UploadDate Grant Family Project Officer 05/04/2019 00J90301 AA 05/04/2019 01J32201 AA 05/04/2019 97891601 AA 05/04/2019 00406918 AB 05/04/2019 00406015 AC 05/04/2019 00406515 AC 05/04/2019 00406715 AC 05/04/2019 00406815 AC 05/04/2019 00526416 AC 05/04/2019 00571110 AC 05/04/2019 00D28115 AC 05/04/2019 00D28215 AC 05/04/2019 00D28315 AC 05/04/2019 00D28415 AC 05/04/2019 00D29215 AC 05/04/2019 00D29515 AC 05/04/2019 00D30415 AC 05/04/2019 00D30715 AC 05/04/2019 00D30815 AC 05/04/2019 00D31015 AC 05/04/2019 00D41515 AC 05/04/2019 00D49516 AC 05/04/2019 00D63217 AC 05/04/2019 00D63317 AC 05/04/2019 00E01521 AC 05/04/2019 00E01547 AC 05/04/2019 00E01999 AC 05/04/2019 00E02038 AC 05/04/2019 00E02335 AC 05/04/2019 00E02338 AC 05/04/2019 00E16405 AC 05/04/2019 00E66504 AC 05/04/2019 00E66603 AC 05/04/2019 00E66604 AC 05/04/2019 02E01503 AC 05/04/2019 83579302 AC 05/04/2019 95490317 AC 05/04/2019 97431017 AC 05/04/2019 98408917 AC 05/04/2019 98409217 AC 05/04/2019 98485117 AC 05/04/2019 98490416 AC 05/04/2019 99060104 AC 05/04/2019 99407714 AC 05/04/2019 99446514 AC 05/04/2019 00T26201 AD 05/04/2019 00T76718 AD 05/04/2019 00T77117 AD 06/11/2019 00J90301 AA 06/11/2019 01J32201 AA 06/11/2019 97891601 AA 06/11/2019 00406918 AB 06/11/2019 00406015 AC 06/11/2019 00406515 AC 06/11/2019 00406715 AC 06/11/2019 00406815 AC 06/11/2019 00526416 AC 06/11/2019 00571110 AC 06/11/2019 00D28115 AC 06/11/2019 00D28215 AC 06/11/2019 00D28315 AC 06/11/2019 00D28415 AC 06/11/2019 00D29215 AC 06/11/2019 00D29515 AC 06/11/2019 00D30415 AC 06/11/2019 00D30715 AC 06/11/2019 00D30815 AC 06/11/2019 00D31015 AC 06/11/2019 00D41515 AC 06/11/2019 00D49516 AC 06/11/2019 00D63217 AC 06/11/2019 00D63317 AC 06/11/2019 00E01521 AC 06/11/2019 00E01547 AC 06/11/2019 00E01999 AC 06/11/2019 00E02038 AC 06/11/2019 00E02335 AC 06/11/2019 00E02338 AC 06/11/2019 00E16405 AC 06/11/2019 00E66504 AC 06/11/2019 00E66603 AC 06/11/2019 00E66604 AC 06/11/2019 02E01503 AC 06/11/2019 83579302 AC 06/11/2019 95490317 AC 06/11/2019 97431017 AC 06/11/2019 98408917 AC 06/11/2019 98409217 AC 06/11/2019 98485117 AC 06/11/2019 98490416 AC 06/11/2019 99060104 AC 06/11/2019 99407714 AC 06/11/2019 99446514 AC 06/11/2019 00T26201 AC 06/11/2019 00T76718 AC 06/11/2019 00T77117 AC

我们的 PowerBI 文件有几个表格，这些表格返回了在某个上传日期，有多少项目官员在 1-2 个、3-9 和 20 多个资助家庭之间工作过。 我们检查了这些数字和过滤器，它们有效。

我们的下一个目标是展示上传日期之间的差异。

我创建了一个 DAX 度量，例如

 PO_Difference = Calculate(DistinctCount('Report'[Project Officer]),'Report'[Upload Date] = date (2019,11,6))-Calculate(DistinctCount('Report'[Project Officer]),'Report'[Upload Date] = date (2019,4,5)) '

它没有返回我们预期的结果。 如果我将公式分成两部分，如果我应用它们的相关过滤器，两个计算部分都会返回预期结果，但我的直觉是过滤器会扭曲公式为每个部分返回的内容，我不知道如何处理这个. 任何帮助将不胜感激。

Answer 1

您可以尝试使用变量吗？

PO_Difference =
VAR x = Calculate(DistinctCount('Report'[Project Officer]),'Report'[Upload Date] = date (2019,11,6))

VAR y = Calculate(DistinctCount('Report'[Project Officer]),'Report'[Upload Date] = date (2019,4,5))

return x -y