How to test for blank values in matrix visual and replace them with a previous value from the table?

[szabofe]

Hi Community, 

I'd like to make a report based on occationally entered soc. media data.
The user enters data related to a specific date and team by soc. media.
How many followers the team has on the specific date?
There are missing weeks, months like this:
(The MAX of the timeperiod can be seen.
I'd like to put a visual on the report witch shows the trend in the end.)

There are two tables in the sample:

I wrote a measure to fill in the matrix cells. 
The returning value would have to corrigate the missing values.
In place of 101010 will come a measure.
(... why don't we have DAX formatting here... )

_MaxFollowerCount = 

    VAR dateMinDateInPeriod = 
        MINX(
            VALUES('Table'[id]);
            VAR dateMin = 
                CALCULATE(
                    MIN('DateTable'[Date]);
                    RELATEDTABLE(DateTable)
                )
            RETURN dateMin
        )

    VAR intMAXinPeriod = 
        MAXX(
            'Table';
            VAR intMax = MAX('Table'[Value])
            RETURN
                IF( 
                    ISBLANK(intMax) || intMax = 0;
                    101010;
                    intMax
                )
        )

    RETURN
        intMAXinPeriod

 
My problem is that: 
The value in the blank cells is not BLANK() nor 0 ... 
I never get back 101010...
What is my failure or missunderstanding?

Thank you for any help.

Regards, 
F.

[v-jayw-msft]

Hi @szabofe ,

Please share some sample data so that we could test the formula.

Best Regards,

Jay

[szabofe]

Hi Jay, 

What is your opinion? 
Am I on the right track?

Thanks and regards, 
F.

[szabofe]

Hi Jay,

You can download my sample from the link below.
TestSocMed.pbix
Thank you for your help.
I got a bit forward in the solution. 
Probably the direction of the iteration in the MAXX sould be on the DateTable side...

    VAR tableDateTableFiltered = 
        FILTER(
            VALUES(DateTable[Date]),
            DateTable[Date] >= dateMinDateInTable && 
                DateTable[Date] <= dateMaxDateInTable
        )

    VAR intMAXinPeriod = 
        MAXX(
            tableDateTableFiltered,
            VAR intMax =
                    MAX('Table'[Value])
            RETURN
                COALESCE( 
                    intMax,
                    101010
                )
        )

 Now the matrix looks like this:

Now I'm fighting with the right measure that gives me back the previous value in the series 
- the value from the before column, that precedes 101010.