Visuals error when using CALCULATE function in a Measure

[Brennan]

I have two tables, Headcounts and Time. In Headcounts, I have a time_id and in Time I have the time_id as a primary key that tells you the time in hour format (12 hours).

Ex) time_id of 1 has a time_12 of 7:00 AM

the 7:00 AM value is of type text. I am trying to make a function of CALCULATE(AVG(headcounts), 'Time'[time_12]) so that when I apply an hour filter to the visual it won't change my Measure. I am getting this error: MdxScript(Model) (7, 166) Claculation error in measure'headocunts'[AVG HC NO Filters]: Cannot convert value '7:00 AM' of type Text to type True/False

Why I am confused is if I use the time_id in the same table, the visual will show.

Thank you for any help.

[v-huizhn-msft · Accepted solution]

Hi @Brennan,

When you use CALCULATE function, you need to add a filter like CALCULATE(<expression>,<filter1>,<filter2>…). The filter must return the True/False to filter your table. You just use 'Time'[time_12], which can not return True/False value, so you got the error message. Please change your formula as follows, and check if it's the result you want.

measure=CALCULATE(AVG(headcounts), ALL('Time'[time_12]))

If you would not get the expected result, please share dummy data and list expected result for further analysis.

Thanks,
Angelia