Forum Discussion
Problems getting previous month averages
I'd use the Date table to modify the date filter context
so e.g. if this is your average:Avg = CALCULATE ( DIVIDE ( SUM ( Overtime[Activity_Hours] ), DISTINCTCOUNT ( 'Overtime'[Activity_Date] ), 0 ), KEEPFILTERS(WEEKDAY ( 'Calendar'[Date], 2 ) > 5) )you can calculate previous month average like this:
Avg Prev Month = CALCULATE( [Avg], PREVIOUSMONTH('Calendar'[Date]) )which calculated the period in reference to the filter context in the Calendar table (here row determines specific month):
you can notice that [Avg Prev Month] is empty on total - that's because there is no specific month reference
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Community Championhow many months back do you want to average? do you want to average per month or just to have average umber of hours per weekend day?
having some sample rows from the overtime table in copiable format would help me work faster as well, like this
| Column1 | Column2 |
| A | 1 |
| B | 2.5 |
Right now I'm only looking for the month before the latest date. I have a monthly average with no months specifically filtered that I can plot and break out by month, but when I try to only pick the last month for use in another measure I run into an issue. The data refreshes once per week so typically it will be last month in relation to today with a few expections. Thanks!
This is a sample of the data
Activity_Date Activity_Hours Sunday, June 30, 2019 12 Sunday, June 30, 2019 8 Friday, June 28, 2019 8 Thursday, June 27, 2019 12 Tuesday, June 25, 2019 12 Sunday, July 21, 2019 12 Saturday, July 20, 2019 8 Saturday, July 06, 2019 8 Friday, July 05, 2019 12 Thursday, July 04, 2019 12 Wednesday, July 03, 2019 12 Wednesday, July 03, 2019 8 Tuesday, July 02, 2019 8 Monday, July 01, 2019 12 Sunday, June 30, 2019 12 Saturday, June 29, 2019 12 Friday, June 28, 2019 8 Thursday, June 27, 2019 8 Thursday, June 27, 2019 12 Wednesday, June 26, 2019 12 Tuesday, June 25, 2019 12 Monday, June 24, 2019 8 Tuesday, May 28, 2019 8 Monday, May 27, 2019 12 Sunday, May 26, 2019 12 Sunday, May 26, 2019 8 Saturday, May 25, 2019 8 - Stachu
I'd use the Date table to modify the date filter context
so e.g. if this is your average:Avg = CALCULATE ( DIVIDE ( SUM ( Overtime[Activity_Hours] ), DISTINCTCOUNT ( 'Overtime'[Activity_Date] ), 0 ), KEEPFILTERS(WEEKDAY ( 'Calendar'[Date], 2 ) > 5) )you can calculate previous month average like this:
Avg Prev Month = CALCULATE( [Avg], PREVIOUSMONTH('Calendar'[Date]) )which calculated the period in reference to the filter context in the Calendar table (here row determines specific month):
you can notice that [Avg Prev Month] is empty on total - that's because there is no specific month reference
Did I answer your question? Mark my post as a solution!
Proud to be a Datanaut!
It fixed a lot of it but there is still one small part. Thank you for your help so far. When I create a table visual it shows that it works. Now I'm using this information as an input into a projection. I'm adding a column in the date table to project based on last month's numbers, what the rest of the month looks like but when I use the measures for that, I get numbers that don't match the table visualization. I verified independantly in excel that the visual values are correct.
Forecasted = if('Date'[Dateswithdata]=false,if('Date'[Weekend?]=true,[Last Month Average Monthly Weekend Day Hours],[Last Month Average Monthly Weekday Hours]),BLANK())Correct Table Visual:
Column (forecasted) with incorrect numbers, using the same measure:
Thank you for the information so far. Also, for my own knowledge, can you explain why I needed to use the keepfilters function in the measure?
