FTE calculation

[Anonymous]

Hi all,

I am looking for a DAX statement which returns the number of FTE given the context. For one month only, I have a solution (*), but for periods longer than 1 month I would like the measure to return the weighted average of FTE, so total hours worked / total workable hours in the selected months. The problem is level of aggregation I think, as the table contains one column for workable hours which only relates to month, while the hours worked relate to employee, type and category.

(*)  SUMX( FILTER( Table ; [Type] = "Hours" ) ; Table[Amount] / Table[Workable hours] )

Your help is highly appreciated!

Regards,

Martin

[Anonymous]

This seems to work properly! Thanks Nathan!

[WinterMist]

@Anonymous 

Can you provide a mock visual example with the expected results (corresponding with your original table visual), which shows the period is longer than 1 month?

As you stated, the table visual originally provided has no row which is longer than 1 month, so the existing table visual does not satisfy the need.

Regards,

Nathan

[Anonymous]

@WinterMist , thanks for your quick response. I think my question is somewhat confusing. With "for periods longer than 1 month I would like the measure to return the weighted average of FTE" I meant, that when I would select multiple months in a report, the measure would return the weighted average of these months, rather than the sum of FTE's over the months.

[WinterMist]

@Anonymous 

Thanks for clarifying.  A couple more q's though.

When you "select multiple months in the report", do you mean that you are selecting months from a slicer?  Or do you simply mean when multiple months are included in the filter context of the visual (like the screenshot shows)?

Would it be possible then to add to the existing visual (perhaps in Excel) a mock-up of what the expected values would be for this visual, when multiple months are selected?

Thanks,

Nathan

[Anonymous]

@WinterMist the table presented earlier is my source data. The output of the measure should return the highlighted values below. With the current DAX statement I get wrong FTE totals.

So the formula needs first needs to sum the hours in the filtercontext (i.e. Jan-Feb). For Employee A, billable hours, this is 160+160 =320 hours. Next, the measure needs to divide the sum by 176+160=336 workable hours for the month. 

And also, for example, for total billable hours Jan (160+172+120) + Feb (160+148+152) = 912, the sum needs to be divided by 176+160=336 workable hours.

[WinterMist · Accepted solution]

@Anonymous 

Your last post was extremely helpful.

Thank you very much for the expected results.

So you can combine these measures into one measure using variables.  However, I've left them separate to show step by step.  This is especially useful when testing pieces of DAX within the table visual results.

Step 1) Create a measure to get the Billable Hours

Step 2) Create a measure to get the Workable Hours

Step 3) Create a measure to Divide. 

Billable Hours / Workable Hours

Results:

Regards,

Nathan