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Frequent Visitor

Get Datediff by group

Hi all

I'm trying to do a Gantt Chart and I'm almost there, but I still need to get a date difference between some dates to get the chart as I want.

 

Here's the example of what I want to do.

 

id       Date

1        01/01/2019

1        01/20/2019

2        01/10/2019

1        02/20/2019

2       01/15/2019

2       01/20/2019

 

So I want to calculate two new columns which are these ones:

 

id       Date                Next Date         Diff

1        01/01/2019     01/20/2019       19

1        01/20/2019     02/20/2019       31

2        01/10/2019     01/15/2019       5

1        02/20/2019      *Today()           lots of days*

2       01/15/2019      01/20/2019       5

2       01/20/2019       *Today()           lots of days*

 

For now I have this calculated column: 

 

DateDiff Column =
VAR PreviousDate = Table1[Date]
 
VAR CurrentDate =
CALCULATE (
LASTDATE ( Table1[Date] ),
ALLEXCEPT ( Table1, Table1[Id] ),
Table1[Date] < EARLIER ( Table1[Date]) )
RETURN
IF ( ISBLANK ( CurrentDate ), DATEDIFF ( CurrentDate, TODAY(), DAY ), DATEDIFF ( CurrentDate, PreviousDate, DAY ) )
 
but it gives me the result out of fhase.
 
May you help me whith this, please.
1 ACCEPTED SOLUTION

Accepted Solutions
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Community Support
Community Support

Re: Get Datediff by group

Hi, @AlexGlz 

If I didn't misunderstand your meaning ,you can try the following steps:

  1. Sort the table by “id” and “ date”
  2. Insert a index column into the table to help you create DAX.( You can right-click to hide the created index column if you don't need to display it )
  3. Create calculate columns “Next Date01” and “Datediff” like that :

 

Next Date01 = 
var ind='Date'[Index]+1
var nextdate=CALCULATE(MAX('Date'[Date]),FILTER('Date','Date'[Index]=ind))
var nextid=CALCULATE(MAX('Date'[id]),FILTER('Date','Date'[Index]=ind))
var val=IF('Date'[id]=nextid,nextdate,TODAY())
return 
val
​
DateDiff = 
var days=DATEDIFF('Date'[Date],'Date'[Next Date01],DAY)
RETURN days
​

 

 

Here’s a sample I made:

Annotation 2019-12-12 143352.png

 

url:https://wicren-my.sharepoint.com/:u:/g/personal/michael_wicren_onmicrosoft_com/ETgEEy8xRn5IiQrnvkI__... 

 

Best Regards,

Eason

Community Support Team _ Eason Fang

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

2 REPLIES 2
Highlighted
Community Support
Community Support

Re: Get Datediff by group

Hi, @AlexGlz 

If I didn't misunderstand your meaning ,you can try the following steps:

  1. Sort the table by “id” and “ date”
  2. Insert a index column into the table to help you create DAX.( You can right-click to hide the created index column if you don't need to display it )
  3. Create calculate columns “Next Date01” and “Datediff” like that :

 

Next Date01 = 
var ind='Date'[Index]+1
var nextdate=CALCULATE(MAX('Date'[Date]),FILTER('Date','Date'[Index]=ind))
var nextid=CALCULATE(MAX('Date'[id]),FILTER('Date','Date'[Index]=ind))
var val=IF('Date'[id]=nextid,nextdate,TODAY())
return 
val
​
DateDiff = 
var days=DATEDIFF('Date'[Date],'Date'[Next Date01],DAY)
RETURN days
​

 

 

Here’s a sample I made:

Annotation 2019-12-12 143352.png

 

url:https://wicren-my.sharepoint.com/:u:/g/personal/michael_wicren_onmicrosoft_com/ETgEEy8xRn5IiQrnvkI__... 

 

Best Regards,

Eason

Community Support Team _ Eason Fang

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

Highlighted
Frequent Visitor

Re: Get Datediff by group

Unfortunately for now I couldn't make the index column because I'm taking the Data from a sharepoint and I don't know if the server has issues or something but I Power BI can't autenticate my credentials, so I can't add any column in power Query...

I will try again in the next days...

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