问题
I have entries that are uniquely identified by a variety of fields and that I pull in from Excel. Entries relate to the daily amount of work done, and people working on a specific area of a plant. Each entry has a work done field (measurement of the work done on that area), and a manpower count. The productivity per area is calculated by work done divided by manpower.
Date Area Work Done Manpower Productivity
2017/02/01 Pipe 50 25 2
2017/02/01 Valve 22 2 11
2017/02/01 Machine 54 2 22
I want to display the work done and manpower as bars in power BI, and the average productivity per day as a line. The problem is that the real productivity for the day (total work done divided by total manpower) is not the average of the individual productivity per area. Thus, I want to be able to create a line that total work done and manpower per day, and divides them to get the productivity, then only displays the productivity.
How can I do this in power BI?
来源：https://stackoverflow.com/questions/42364341/average-power-bi-aggregates