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Helper I

7 years ago

Solved

Array formula

Hello, By using array formula ( {=B2-MIN(IF($A$2=$A$2:$A$51;$B$2:$B$51))}, where column A is ID and column B is date/time ), in excel I could plot values under a period of time, say 0 to 6 min inst...

MFelix
7 years ago
Hi kranthi82 ,

Try to use the following calculated column:

Log_Dax_Based = 'Table'[LogTime] - CALCULATE ( MIN ( 'Table'[LogTime] ); ALLEXCEPT ( 'Table'; 'Table'[ID] ) )

You can also do it based on a query editor, check the PBIX file with both options.

I also got a Logs Excel column so you can compared it with the results.

Regards,

MFelix
Log_Column.pbix32 KB

Anonymous

Not applicable

7 years ago

DAX operates on the concept of columns, so what was your array will be column. Now the trick is to figure out how to change/modify what is in that table.

If you post some sample data and your expected outcome I can help you out with this specific example, but I'd recommend taking a look at these links from microsoft on dax

https://docs.microsoft.com/en-us/dax/data-analysis-expressions-dax-reference

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Helper I

7 years ago

Anonymous Thank you so much for your advice. I indeed learn everyday DAX and try to solve myself in the first place.

Here is some sample data and I hope you can help me.

The Log column data has been calculated from Excel so the DAX or Column expression should give the data as in the Log column and if I plot it then it should look as follows.

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Community Support

7 years ago

Hi kranthi82,

Below is my data sample

id date amount log

1	2019/8/1 10:50:54	1	00:00:00
1	2019/8/1 10:51:25	2	00:00:30
1	2019/8/1 10:51:54	3	00:01:00
1	2019/8/1 10:52:25	4	00:01:30
1	2019/8/1 10:52:54	4	00:02:00
1	2019/8/1 10:53:25	4	00:02:30
1	2019/8/1 10:53:54	4	00:03:00
1	2019/8/1 10:54:25	3	00:03:30
1	2019/8/1 10:54:54	2	00:04:00
1	2019/8/1 10:55:25	1	00:04:30
2	2019/8/1 11:25:20	1	00:00:00
2	2019/8/1 11:25:50	2	00:00:30
2	2019/8/1 11:26:20	3	00:01:00
2	2019/8/1 11:26:50	4	00:01:30
2	2019/8/1 11:27:20	4	00:02:00
2	2019/8/1 11:27:50	4	00:02:30
2	2019/8/1 11:28:20	4	00:03:00
2	2019/8/1 11:28:50	3	00:03:30
2	2019/8/1 11:29:20	2	00:04:00
2	2019/8/1 11:29:50	1	00:04:30
3	2019/8/1 12:23:33	1	00:00:00
3	2019/8/1 12:24:03	2	00:00:30
3	2019/8/1 12:24:33	3	00:01:00
3	2019/8/1 12:25:03	4	00:01:30
3	2019/8/1 12:25:33	4	00:02:00
3	2019/8/1 12:26:03	4	00:02:30
3	2019/8/1 12:26:33	4	00:03:00
3	2019/8/1 12:27:03	3	00:03:30
3	2019/8/1 12:27:33	2	00:04:00
3	2019/8/1 12:28:03	1	00:04:30

If you want to get result like below

You could try to create measure like below

Measure 6 = AVERAGE('Table (2)'[amount])

Best Regards,
Zoe Zhi

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

kranthi82
Helper I
7 years ago
Hi dax ,
Thank you so much for your effort but I think I need to reframe the question. My original data doesn't contain column Log. I would like to write a DAX formuala so that I can get column Log. In excel to get that column I use an array formula and I don't know how to do it with DAX. I hope you understand my problem now.
- MFelix
  Super User
  7 years ago
  Hi kranthi82 ,
  
  Try to use the following calculated column:
  
  Log_Dax_Based = 'Table'[LogTime] - CALCULATE ( MIN ( 'Table'[LogTime] ); ALLEXCEPT ( 'Table'; 'Table'[ID] ) )
  
  You can also do it based on a query editor, check the PBIX file with both options.
  
  I also got a Logs Excel column so you can compared it with the results.
  
  Regards,
  
  MFelix
  
  Log_Column.pbix32 KB

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