Calculated column Running MAX of values so far in DAX - powerbi

Can you help me with how can I have a column in DAX to store the running MAX of values so far.
My table has two columns named as DateTimeStamp column and Value column and I want to have a new column that shows me the MAX value so far in another column.
Your kind guidance is highly appreciated.

See
Lots of articles and videos on this. http://sqlbi.com is probably the most useful, comprehensive, and authoratitive site for help with DAX.
Read https://www.sqlbi.com/articles/computing-running-totals-in-dax/
So
Running MAX of value =
var MaxTimestamp = max( 'Table'[DateTimeStamp] )
return calculate(
max( 'Table'[Value] ),
'Table'[DateTimeStamp] <= MaxTimestamp,
ALL ( 'Table'[DateTimeStamp] )
)

Related

How to perform a MIN value Grouped By Date Measure in PowerBI?

I have a measure called PERC that basically spits out a percentage. I am now creating a measure that I can place in the "Y-Axis Start" function for a trend line. I need this new measure to calculate the MIN of PERC grouped by [MonthYear] (a column in my data). How do I perform this? I have tried using the GROUPBY function but keep getting errors no matter how much I play with MIN, MINA and MINX...
My brain wants to do this:
CALCULATE(
MIN([PERC], "*Grouped By*"('Data'[MonthYear])
)
Thank you in advance. I'll be happy to answer any follow up questions for more context.
Try
MinPERCbyMonthYear :=
VAR MyTable =
SUMMARIZE ( Table1, Table1[MonthYear], "PERCbyMonthYear", [PERC] )
RETURN
MINX ( MyTable, [PERCbyMonthYear] )
replacing Table1 as required.

DAX PowerBI: Calculating sum of column based on other column

I am trying to calculate the TotalFTE, but I can't figure it out. I am fairly new to DAX and trying to make the best of it with some studycases.
The table contains a lot of columns, but these are the columns that are needed for the measure.
The measure should sum the highest FTE in a year per ID and ignore the blanks in ID.
I've build a measure that gives an error when I try to visulise the result in a card. My measure: TotalFTE = CALCULATE(MAX(Table[FTE]), FILTER(Table, DISTINCT(Table[ID])))
Any feedback?
Moving forward, please post data as tables in stack and refrain from provide the data as image.
Measure =
SUMX (
GROUPBY (
'Fact',
'Fact'[year],
'Fact'[ID],
"#Max", MAXX ( CURRENTGROUP (), 'Fact'[FTE] )
),
[#Max]
)

Self-reference a column in DAX or Power Query

I am looking to create column D of the table below in power query or DAX. You can see the excel formula in the cell. I need to add columns from the current row and add a previously calculated row above. The column is self-referencing. I am stuck and do not know how to proceed. Any help would be appreciated.
You cannot recursively self-reference a column in DAX. See here for more detail on that.
That said, just like the examples linked in that post (also below), you don't really need recursion for your purpose but rather a cumulative total of Production - Demand plus an initial inventory amount.
That is, something like this:
Projected Inv. =
CALCULATE (
SUM ( Table1[Production] ) - SUM ( Table1[Demand] ),
FILTER ( Table1[Date], Table1[Date] <= MAX ( Table1[Date] ) )
) + 174408
How to perform sum of previous cells of same column in PowerBI
DAX - formula referencing itself

DAX sum filtered by multiple columns of related tables

I have a measure, which is being added to a table and a Card. The measure is used to show the total hours posted where Calls.[Sch Engineer]=Hours.Employee AND Calls.ProjID=Hours.ProjID
The value on each row of the table is correct. However the total value for this measure is incorrect in the table and also the Card, and I cant work out why.
So the measure is:
SchEngHrsOnly =
VAR main =
MAX ( Calls[Sch Engineer] )
RETURN
CALCULATE ( SUM ( 'Hours'[Hrs] ), Hours[Employee] = main )
When I add this to a table visual I get the following - both Table total and Card value for measure are incorrect - they should be 163.50:
If I select a row in the table visual, then the Card visual shows a correct value, otherwise it shows an incorrect value:
My data model is:
My relationships are:
What I am looking to get is:
Also, please see here the PBIX file:
PBIX File
Can anyone help with this issue please?
If you want SUM of MAX values, then go this way:
SumOfMaxes =
SUMX(
VALUES( Hours[ProjID] ),
CALCULATE( MAX( Hours[Hrs]) )
)
It produces:
You might be also interested in:
DAX ALLEXCEPT to sum by category of multiple dimension tables
DAX Median of category sums
Edit
After your explanations I see that you want filtered sum.
FilteredSum =
CALCULATE (
SUM ( Hours[Hrs] ),
FILTER (
Hours,
Hours[Employee] = RELATED ( Calls[Sch Engineer] )
&& Hours[ProjID] = RELATED ( Calls[Proj ID] )
)
)
https://www.sqlbi.com/blog/marco/2010/02/09/how-to-relate-tables-in-dax-without-using-relationships/
You can create it as a calculated column and then sum it up to get the value:
Hours Calc = CALCULATE(MAX(Hours[Hrs]),FILTER(Hours,Hours[ProjID]=Calls[ProjID]))
The above calculation will add a column with the maximum of hours for each project ID. Then you can sum it up in the final table and should get the desired results. Hope this helps.

DAX Measure to determine % of parent row in column chart

I've been struggling to find a way to achieve the result of a matrix visualization in Power BI, in a line and clustered column chart.
I have tried using ALLSELECTED, ALL, ALLEXCEPT in order to ignore one filter but no matter how I try it, I'm not reaching my end goal.
CarCountPerCategory =
CALCULATE(
DISTINCTCOUNT(Table[CarID]),
ALLSELECTED(Table[Filter])
)
This still breaks down the measure to the Filter level instead of ignoring it. I am looking for something that will give me the total distinct count regardless of the Filter column. E.g. TimesReshopped 1 - 190 on all 3 columns, TimesReshopped 2 - 182 on all 3 columns of the Filter Column series. I need this as a sidestep in order to divide the distinct car count to the total distinct car count per times reshopped in order to reach the percentage that I am looking for. (the one in the matrix)
Can someone help me with some advice? Thank you.
Try this:
[Total Category Count]:=
SUMX ( SUMMARIZE ( Table, Table[TimesReshopped] ), [Count of CarID] )
I got to the bottom of this by using ALLEXCEPT and providing all the filter that I was using:
CarCountPerCategory =
CALCULATE(
DISTINCTCOUNT(Table[CarID]),
ALLEXCEPT(Table,Table[Year],Table[Month],Table[LocationName],Table[CustCode],Table[TimeReshoped])
)