Sum values by line excluding past entries for same ID

[ajmonster]

Hello

I need help running calculations on a live survey feed.

I have a table that will continuously add records to itself. I need to sum values but I can't sum in previous records for the same ID. For example, suppose I have the following table:

Name	Completed	Value
Jon	2/26/2018	2
Jacob	2/25/2018	3
Jon	2/24/2018	1
Jill	2/26/2018	5
Jim	2/26/2018	4
Jacob	2/23/2018	4

For sums, I only want to sum the values for each name given the latest date for that name. The sum I want returned is:

Jon = 2
Jacob = 3
Jill = 5

Jim = 4

Total = 14

Average = 3.5 

Thanks,

ajmonster

PS Bonus points if you can somehow create a table comprised of the unique Names and have their records update when the master query has a more recent record.

[Vvelarde · Accepted solution]

@ajmonster

The Bonus points :

Go to Modeling- New Table

Table =
SUMMARIZECOLUMNS (
    Table1[Name];
    "Lastrecord"; MAX ( Table1[Completed] );
    "Value"; CALCULATE (
        SUM ( Table1[Value] );
        FILTER ( Table1; Table1[Completed] = MAX ( Table1[Completed] ) )
    )
)

Regards

Victor

Lima - Peru

[ajmonster]

@Vvelarde

Is there a way to merge all the columns from Table1 (in my exact case, I have 40 columns) into this created Table?

[Vvelarde]

@ajmonster

Hi, i'm not sure that can be possible without reference all the columns that you want to summarize.

[ajmonster]

@Vvelarde This is it. Thank you.

Would I be able to use SELECTEDVALUE ( Table1[Value] ) instead of SUM( Table1 [Value] ) to select the field Value in the case that there are two records under the same [Name] and same [Completed] date?