Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Earn a 50% discount on the DP-600 certification exam by completing the Fabric 30 Days to Learn It challenge.

Reply
reddog
New Member

Calculate percentage for different columns and groups

Hello,

 

Im sure there already is an answer here to solve my problem, but I haven't been able to find it. If there already is a thread explaining the same problem feel free to link to that thread.

 

In my data I have a timestamp column with YYYY-MM-DD hh:mm:ss

I then have diffent columns to be used for grouping based on group of the timestamp.

Like this:

 

TimestampHour30min5minBusyOccupied30BusyOccupied5
2017-02-23 08:00:0080011
2017-02-23 08:05:00805 1
2017-02-23 08:10:00801011
2017-02-23 08:15:00801511
2017-02-23 08:20:0080201 
2017-02-23 08:25:008025 1
2017-02-23 08:30:0083030  
2017-02-23 08:35:00830351 
2017-02-23 08:40:0083040 1
2017-02-23 08:45:0083045  
2017-02-23 08:50:008305011
2017-02-23 08:55:0083055 1
2017-02-23 09:00:00900 1
2017-02-23 09:05:009051 
2017-02-23 09:10:00901011
2017-02-23 09:15:009015  
2017-02-23 09:20:0090201 
2017-02-23 09:25:009025 1
2017-02-23 09:30:0093030  
2017-02-23 09:35:0093035  
2017-02-23 09:40:0093040 1
2017-02-23 09:45:0093045 1
2017-02-23 09:50:0093050  
2017-02-23 09:55:0093055 1

 

I need to calculate the the number of ones withing the groups of BusyOccupied30 AND BusyOccupied5.

Since my data is at the level of 5 min, there cannot be two ones within the same "5-min"-group for every hour. But there can by one or many ones within the same 30-min group.

 

What I want to achieve is to put the number of ones withing each group in relation to the number of maximum ons there can be withing that group.

For 5 min there can be a totalt of 24 ones.

For 30 min there can be a totalt of 4.

 

My diagram should be able to show 75% (3 out of 4) for busyoccupied30, and 58,3% for busyoccupied5.

 

I've been trying to play around with a measure using countdistinct, max, maxx but I can't get it to work... 😞

 

Regards,

Alfred

1 ACCEPTED SOLUTION
v-huizhn-msft
Employee
Employee

Hi @reddog,

Based on my understanding, we can group all the rows to 4 if we record ones in 30 min. And in the last group, there is no value in BusyOccupied30 column 2017-02-23 09:30:00 through 2017-02-23 09:55:00, the number is 3, so you want to calculate 3/4=75%, right? If it is, please review the following steps.

1. Create a calculated to identify the 30-min groups. Create rank column and get four 30-min groups based on rank column.

Rank = RANKX(Test,Test[Timestamp],,ASC)

Group-30min = IF(Test[Rank]<=6,"Group1",IF(Test[Rank]<=12,"Group2",IF(Test[Rank]<=18,"Group3","Group4")))

 

2. Create a calculated column to identify if there is number in each group.

identify = CALCULATE(COUNT(Test[BusyOccupied30]),FILTER(ALLEXCEPT(Test,Test[Group-30min]),Test[BusyOccupied30]<>BLANK()))


  Please see the three calculated column in the screenshot.

 

1.PNG

3. Create measure to calculate what you want.

For busyoccupied30 = DIVIDE(CALCULATE(DISTINCTCOUNT(Test[identify]),FILTER(Test,Test[identify]<>BLANK())),DISTINCTCOUNT(Test[Group-30min]))

For busyoccupied5 = DIVIDE(CALCULATE(COUNTA(Test[BusyOccupied5]),FILTER(Test,Test[BusyOccupied5]<>BLANK())),COUNTROWS(Test))

 

4. Create a Muti-row card to display the result.

2.PNG

 

Please let me know if you have any issue.

Best Regards,
Angelia

 

 

View solution in original post

2 REPLIES 2
v-huizhn-msft
Employee
Employee

Hi @reddog,

Based on my understanding, we can group all the rows to 4 if we record ones in 30 min. And in the last group, there is no value in BusyOccupied30 column 2017-02-23 09:30:00 through 2017-02-23 09:55:00, the number is 3, so you want to calculate 3/4=75%, right? If it is, please review the following steps.

1. Create a calculated to identify the 30-min groups. Create rank column and get four 30-min groups based on rank column.

Rank = RANKX(Test,Test[Timestamp],,ASC)

Group-30min = IF(Test[Rank]<=6,"Group1",IF(Test[Rank]<=12,"Group2",IF(Test[Rank]<=18,"Group3","Group4")))

 

2. Create a calculated column to identify if there is number in each group.

identify = CALCULATE(COUNT(Test[BusyOccupied30]),FILTER(ALLEXCEPT(Test,Test[Group-30min]),Test[BusyOccupied30]<>BLANK()))


  Please see the three calculated column in the screenshot.

 

1.PNG

3. Create measure to calculate what you want.

For busyoccupied30 = DIVIDE(CALCULATE(DISTINCTCOUNT(Test[identify]),FILTER(Test,Test[identify]<>BLANK())),DISTINCTCOUNT(Test[Group-30min]))

For busyoccupied5 = DIVIDE(CALCULATE(COUNTA(Test[BusyOccupied5]),FILTER(Test,Test[BusyOccupied5]<>BLANK())),COUNTROWS(Test))

 

4. Create a Muti-row card to display the result.

2.PNG

 

Please let me know if you have any issue.

Best Regards,
Angelia

 

 

Thank you @v-huizhn-msft

 

I've marked your answer as sollution. However, I can't use it with my real data.

The data I have is telemetry data (from motion sensors), so I get thousands of samples each day. I need to calulate the total use of one sensor, a group of sensors or all sensor for a hole day, manydays and so on.

 

The smallest group of sensordata is in 5 min-intervall, as my exampled showed. And to be able to calulate this for all the different needs I have a column that says 1 if there has been a motion within that 5 min interval (or 0 if there hasn't been a motion within that interval). Thats why I have the column BusyOccupied5 in the example. In the database it's easy to achieve this when I group my data:

select max(busyoccupied)

from table

group by hour,  5min

 

But I don't know how I can achieve the same column busyoccupied30 so I get the max value from all the rows that is withing a 30-min-interval. That's why I posted the question here.

 

If I use your solution, I need to create a lot of "Group-30min"-columns. Groups for all the 30-min-intervals for 1 day, for office hours, for morning, afternoon and evening. And then the same for 10 and 15 min. That will be too time consuming (even if it's a one time job).

 

So if your solution were more dynamic when it came to the measure, not depending on a group-30min-column but instead "how many hours+30min-group are there" then it would be really good.

 

Thank you again for your help!

 

Regards,

Alfred

Helpful resources

Announcements
LearnSurvey

Fabric certifications survey

Certification feedback opportunity for the community.

PBI_APRIL_CAROUSEL1

Power BI Monthly Update - April 2024

Check out the April 2024 Power BI update to learn about new features.

April Fabric Community Update

Fabric Community Update - April 2024

Find out what's new and trending in the Fabric Community.