在上述三个方法中,SUM和IF借助于括号嵌套而结合在一起,IF优先于SUM。由于SUM和IF完全独立,从计算的角度看,SUM对不符合计算条件的null或者0值也要执行相加计算——这一点非常重要,后面SUMIF的优化方案就是从这里而来。 我在2021年5月写过一篇博客,题名“【高级】Tableau性能优化之关键:两种计算对性能的影响实证”...
2单条件求和,有同学可能会想到用SUMIF函数,我的观点是直接PASS这个函数(不做介绍),主观上我认为这是一个鸡肋的函数,因为SUMIFS函数涵盖它并且更好用 在query1表B2单元格输入公式:=SUMIFS(成绩单!I:I,成绩单!C:C,A2),下拉填充完成查询 SUMIFS多条件求和用法: SUMIFS(sum_range, criteria_range1, criteria1, ...
为了在灵活性和性能之间保持平衡,Excel中就有了SUMIF函数,Power BI又延伸了 SUMX和CALCULATE函数的计算,从而把聚合和条件独立分开。 完成同环比的另一个思路则是引入窗口计算,将视图维度作为聚合值二次计算的依据,在SQL中称为窗口计算(Window Calculation),Tableau对应表计算(Table Calculation)。这就是本书第9章的内...
作为类编程语言,这也是PBI相比于Tableau等敏捷BI的关键所在。 1- SUM DAX function SUM函数是一类聚合函数(aggregation function),用于计算一列中的所有数字之和(calculates the sum of all numbers in a column)。因此语法中引用字段列名称——这也是SUM函数的唯一变量(SUM support only single argument.)。 语法...
each record is 1 so if the goal is to only count certain records you could do that with an if statement like if [value].10 then 1 else 0 end and take the field into Tableau as 1 and 0's but you could do the same in Tableau proper Jim Expand Post UpvoteReply Mitchell Hensman (...
This shows that the proposed method makes the model focus more on critical information, and the positive and negative samples also act as an effective tableau to improve the summary generation performance. Although the effect of the method proposed in this paper is not significant on the ...
So, to make things easy, Excel has this inbuilt feature called Autosum in excel.This article on Autosum in Excel will help you learn the fundamentals of the autosum feature and how to implement it in real-time.Become an Expert in Data VisualizationWith Our Top-notch Tableau TrainingGet ...
In response to TableauIsBetter 01-02-2024 12:11 AM Hi @TableauIsBetter , Did the above suggestions help with your scenario? if that is the case, you can consider Kudo or Accept the helpful suggestions to help others who faced similar requirements. If these also don't ...
The first part of your calculation, WINDOW_SUM(SUM([Sales]),0,0), tells Tableau to only sum the value on the current row (i.e., start and stop summing on this row). The value displayed will be no different than if you just put SUM([SALES]), but filtering can be affected since...
There are two ways to do this in Tableau :If you CAN USE sql AND YOU actually need the ...