DAX去年至今 [英] DAX Last Year to Date

问题描述

所以我知道这个问题已经问过几次了，我虔诚地研究了不同的方法，但是我仍然不太明白为什么我得到的结果不正确。

So I know this question has been asked a few times, and I've religiously looked over different approaches, however I still don't quite understand why I'm getting an incorrect result.

案例：我有从〜2016-> 2019年的销售数据（直到2/18/2019）我有一个度量来显示年初至今，但是我正在寻找一个度量迄今为止的最后几年（在这种情况下为第18个）。

Case: I have Sales Data from ~2016 -> 2019 (up until the 2/18/2019) I'm have a Measure to show me the YTD, however I'm looking for a measure for Last Years to date(the 18th in this particular circumstance).

现在，我有：

    Total Sales LYTD = 
CALCULATE (
    [Total Sales],
    SAMEPERIODLASTYEAR (
        FILTER (
            VALUES ( Sales[Completed Date] ),
            Sales[Completed Date] <= MAX ( Sales[Completed Date] )
        )
    )
)

对我来说，逻辑很有意义，但我敢肯定我错过了一些东西，看来它在整个2018年吸引了我， m寻找01/01/2018-> 2/18/2018

The logic to me makes sense, but I'm sure I'm missing something, has it appears it's grabbing the ENTIRE total of 2018 when in reality i'm looking for 01/01/2018 -> 2/18/2018

动态地上传新的销售数据

This is going to be dynamically uploaded with new sales data

我缺少什么？

推荐答案

不确定我是否了解您的表设置，因此让我们看一下这种情况，希望对您有帮助。

Not sure I understand your table setup so lets look at this scenario and hopefully it helps.

假设您有两个表Sales和Calendar中的数据，并且日历和sales表之间存在1：*的关系。然后我将这样写：

Suppose you have the data in two tables, Sales and Calendar, and there's a 1:* relationship between the calendar and the sales tables. Then I would write the measures like this:

SalesToDateThisYear = 
calculate(
    Sum(Sales[Sales]);
    Calendar[Year] = Year(Today())
)

and

SalesToDateLastYear =
var dateLastYear = Today() - 365
return
calculate(
    Sum(Sales[Sales]);
    Calendar[Year] = Year(dateLatsYear);
    Calendar[Date] < dateLastYear
)

两个过滤器参数与逻辑AND组合。因此，只包括从去年第一天到去年今天的日期。

The two filter arguments are combined with a logic AND. So only dates from the first of last year to today's date last year will be included.

如果要使用SamePeriod函数，您可能可以编写如下内容

If you want to use the SamePeriod-function you can probably write something like this

SPLY = 
calculate = 
    Sum(Sales[Sales]);
    SamePeriodLastYear(
        Filter(
            Values(Calendar[Date]);
            Calendar[Date] >= Date(year(today()); 1; 1) && Calendar[Date] < Today()
        )
    )
)

SamePeriod函数采用一组日期（今年）并将其转换为去年的日期。

The SamePeriod-function takes a set of dates (this year) and converts them to dates last year.

欢呼声

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