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Rajesh_G Regular Visitor
Regular Visitor

Calculate amount of time at which a certain condition is valid

Hi Everyone!

 

I'm having an issue trying to calculate the amount of time that a certain condition is valid in a set of data. See graph below. I'm trying to calculate what amount of time the Feed Rate in this case is above 800 tph. The formula I currently have is as follows:

 

Time [>800 tph] = CALCULATE( ---what function can I use here?--- , 'Feed Rate'[Value]>800 )

 

What DAX function can I use to calculate time duration? (For which the data is above 800 tph)

 

 

Power BI community 2.png

1 ACCEPTED SOLUTION

Accepted Solutions
Moderator v-yuezhe-msft
Moderator

Re: Calculate amount of time at which a certain condition is valid

@Rajesh_G,

Please check DAX in the attached PBIX file.

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

10 REPLIES 10
Moderator v-yuezhe-msft
Moderator

Re: Calculate amount of time at which a certain condition is valid

@Rajesh_G,

Please use the DAX below.

Time>800 tph = CALCULATE( COUNTA('Feed Rate'[Time]) , 'Feed Rate'[Value]>800 )


2.PNG
Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Rajesh_G Regular Visitor
Regular Visitor

Re: Calculate amount of time at which a certain condition is valid

Hi Lydia

 

Thank you for your response. However, that seems to calculate the AMOUNT of values rather than the actual TIME that the values are above 800.

 

Kind regards

Rajesh

Moderator v-yuezhe-msft
Moderator

Re: Calculate amount of time at which a certain condition is valid

@Rajesh_G,

What is your expected result based on the sample data I post?

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Rajesh_G Regular Visitor
Regular Visitor

Re: Calculate amount of time at which a certain condition is valid

It would be "2 hours" (from 7AM to 9AM) assuming that the hypothetical 10 AM would have a value below 800

Moderator v-yuezhe-msft
Moderator

Re: Calculate amount of time at which a certain condition is valid

@Rajesh_G,

Create the following column.

Column = IF('Feed Rate'[Value]>800,1,0)


Then create the following measures. If the Dax don't return your expected result, please share sample data of your table here.

MinTime = CALCULATE(MIN('Feed Rate'[Time]),FILTER('Feed Rate','Feed Rate'[Column]=1))
MaxTime = CALCULATE(MAX('Feed Rate'[Time]),FILTER('Feed Rate','Feed Rate'[Column]=1))
TimeAmount = LEFT(([MaxTime]-[MinTime]),1)

1.PNG

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Rajesh_G Regular Visitor
Regular Visitor

Re: Calculate amount of time at which a certain condition is valid

Hi Lydia

 

Thank you for your response. 

 

1. Why do you use the "LEFT" function if I may ask? 

 

2. The method proposed does give the desired result but only if theres one continuous occurence of the condition. For instance, if in your dataset you could add that at 11 AM the value is 850 and at 12:00 its 900 and finally at 13:00 its 300 again, would this formula pick up that the total is 3 hours (2 hours between 7 and 9 and 1 hour between 11 and 12)?

 

Kind regards

Rajesh 

Moderator v-yuezhe-msft
Moderator

Re: Calculate amount of time at which a certain condition is valid

@Rajesh_G,

The Left function is to get duration hour, otherwise the measure will show in Time formt. Please share sample data of your table and post expected result based on sample data .

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Rajesh_G Regular Visitor
Regular Visitor

Re: Calculate amount of time at which a certain condition is valid

Hi Lydia

 

Please see below an example set of data. Notice how the TimeAmount measure calculates the total time at which the condition is valid to be 6 hours whereas it is actually supposed to be 3 hours.

 

Power BI community 3.png

 

Kind regards

Rajesh Gowda

Moderator v-yuezhe-msft
Moderator

Re: Calculate amount of time at which a certain condition is valid

@Rajesh_G,

Please check DAX in the attached PBIX file.

Regards,
Lydia

Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

View solution in original post

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