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How do i create a column with variance?

There are many other questions like this but they always use months or day. For me, I want to calculate it hourly. I have 3 columns: canteen_location (text), hour (whole number, not summarised), and number_of_people (whole number, summarised). For canteen_location, there are 3 unique values: B73, B22, and B51.

In my visual, I have a filter for the canteens.

How do I create a new column called 'variance%' that shows the hourly variance of the number of people? Thanks

1 ACCEPTED SOLUTION
Super User

@doveShampoo , Create a separate table with distinct hours and join it back with hours

Then you can have measures like

This hour= CALCULATE(sum('Table'[number_of_people]),filter(ALL('hour'),'Date'[hour]=max('Date'[hour])))

Last hour= CALCULATE(sum('Table'[number_of_people]),filter(ALL('hour'),'Date'[hour]=max('Date'[hour])-1))

Super User

@doveShampoo , Create a separate table with distinct hours and join it back with hours

Then you can have measures like

This hour= CALCULATE(sum('Table'[number_of_people]),filter(ALL('hour'),'Date'[hour]=max('Date'[hour])))

Last hour= CALCULATE(sum('Table'[number_of_people]),filter(ALL('hour'),'Date'[hour]=max('Date'[hour])-1))

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