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New Member

## cumulative sum of a column in Power BI

Good morning, everyone!

I have been trying for a few days to perform the cumulative sum of a column in Power BI that resets the sum to zero when the value in another column (in the same row) is TRUE. At the moment, I managed to perform the cumulative sum and set zero for the rows that have the TRUE value, but it does not restart the cumulative sum after zero, as it should. Here is the DAX code I have so far. Could someone help me perform this cumulative sum correctly? Thank you in advance.

CumulativeSumBotrytis =
VAR CurrentDate = Donnes_SERRE1_2021_2023_test[Date]
RETURN
IF(
Donnes_SERRE1_2021_2023_test[Applications fongicides] = TRUE,
0,
CALCULATE(
SUMX(
FILTER(
ALL(Donnes_SERRE1_2021_2023_test),
Donnes_SERRE1_2021_2023_test[Date] <= CurrentDate &&
Donnes_SERRE1_2021_2023_test[Applications fongicides] <> 1
),
Donnes_SERRE1_2021_2023_test[ColuneBotrytis]
)
)
)

3 REPLIES 3
Super User

Hello @silveiralopesa,

``````CumulativeSumBotrytis =
VAR CurrentDate = Donnes_SERRE1_2021_2023_test[Date]
VAR ResetGroup =
CALCULATE(
COUNTROWS(
FILTER(
ALL(Donnes_SERRE1_2021_2023_test),
Donnes_SERRE1_2021_2023_test[Applications fongicides] = TRUE
&& Donnes_SERRE1_2021_2023_test[Date] <= CurrentDate
)
)
)
RETURN
CALCULATE(
SUM(Donnes_SERRE1_2021_2023_test[ColuneBotrytis]),
FILTER(
ALL(Donnes_SERRE1_2021_2023_test),
Donnes_SERRE1_2021_2023_test[Date] <= CurrentDate
&& CALCULATE(
COUNTROWS(
FILTER(
ALL(Donnes_SERRE1_2021_2023_test),
Donnes_SERRE1_2021_2023_test[Applications fongicides] = TRUE
&& Donnes_SERRE1_2021_2023_test[Date] <= Donnes_SERRE1_2021_2023_test[Date]
)
)
) = ResetGroup
)
)
``````

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New Member

thanks for the answer! BUT it gives me just blank spaces in the new column. For each day we have more then one value in the column "ColuneBotrytis" (one value for each 30 minutes in the day). In the column "Applications fongiques", the "TRUE" or "FALSE" value is repeated in all rows concerning the same date. Maybe this requests a change in the DAX?

New Member

This DAX resulted in blank spaces only 😑

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