我可以在SUMMARIZECOLUMNS中使用SUBSTITUTE ...我需要首先创建一个变量吗？

Question

我是DAX的新手。我有以下代码，但我希望所有出现的Office =“ Boston New”都被替换为“ Boston”。我尝试了SUBSTITUTE，但收到以下错误：

EVALUATE
SUMMARIZECOLUMNS(
TimeKeeper[Office],
Employee[Job Class],
TimeKeeper[Timekeeper Name],
"Hours WTD", [Hours Billed WTD],
"Hours MTD", [Hours Billed MTD],
"Hours YTD", [Hours Billed YTD],
"Hours Prior MTD", [Hours Billed Prior MTD],
"Hours Prior YTD", [Hours Billed  Prior YTD])

查询（3，13）无法确定表'TimeKeeper'中'Office'列的单个值。当度量公式引用包含许多值但未指定诸如最小值，最大值，计数或总和之类的聚合的列时，就会发生这种情况。

我尝试过的事情：

   EVALUATE
   SUMMARIZECOLUMNS(
SUBSTITUTE(TimeKeeper[Office], "Boston New","Boston"),
Employee[Job Class],
TimeKeeper[Timekeeper Name],
"Hours WTD", [Hours Billed WTD],
"Hours MTD", [Hours Billed MTD],
"Hours YTD", [Hours Billed YTD],
"Hours Prior MTD", [Hours Billed Prior MTD],
"Hours Prior YTD", [Hours Billed  Prior YTD]
     )