im struggling with the following problem. I have categorical variables and and Amount column. What I want to do is, to write a dax measure which calculates the moving/rolling Sum, like you see in the third column "Dax Measure". Did not find any inhouse Dax function for that.
moving sum
EDIT:
Result Table with Dax Measure
Source Table
This will work if the category is always sorted ASC.
Dax measure =
VAR _currentRank = RANKX(ALL('Table'[Category]),CALCULATE(MIN('Table'[Category])),,ASC)
RETURN
CALCULATE(
CALCULATE(SUM('Table'[Amount]),TOPN(_currentRank,VALUES('Table'[Category]),MIN([Category]))),
ALL('Table'[Category])
)
Using RANKX to define the other and aggregating for all the item before it.
Related
I'm new to DAX and I'm trying to do something that would be really simple in Excel!
Using data from the same table, I'm trying to add a measure, that calculates my 'TargetCost' column where the 'NameUnit' is '1111'.
if nameunit = 1111 then sum the target cost
In excel the formula would be:
=sumif(nameunit,"1111",targetcost)
How do I write this into a measure in DAX please?
Here you go:
Measure =
CALCULATE(
SUM('Table'[targetcost]),
'Table'[nameunit] = "1111"
)
https://learn.microsoft.com/en-us/dax/calculate-function-dax
I have a fact table with sales data, and I need to calculate the % change month over month. I have tried the following formula:
PreviousMonthSales:= calculate(
SUM('fTable'[Sales];
Parallelperiod( 'Calender'[Date], -1, month)
)
The result that I receive in the pivot table is the same value as the current month. So it seems like something is being calculated, but the result is not different at all from the regular sales column.
The Calender Table is my date table. I have also tried using the functions PreviousMonth and DateAdd, but that has also not worked.
I am not sure if it will make a difference, but I am using Power Pivot in Excel 365, not Power BI.
I need help in calculating the cumulative frequencies row wise with minimum date and maximum date selection by users using sliders. Here is the table that I want to generate could you please guide me? I've tried various function and methods but nothing is giving me right answer. Thanks a lot in advance.
Below is the table that I've and I want to generate:
Original Table
Desired Table
To create a running total, create a new measure in your table like this (where Table is the name of your table):
Running Total = CALCULATE(
SUM('Table'[Values]);
FILTER(ALLSELECTED('Table'); 'Table'[Date] <= SELECTEDVALUE('Table'[Date]))
)
I want to create a simple percent change formula in power BI. Specifically, I want to evaluate month over month %change in cost. I know that percent change can be defined in different ways, so to be clear this is the formula that I am referring to:
%change = ([current value] - [previous value])/[previous value].
Here is an example in Excel of what I want to achieve:
I cannot find a way to target a specific row in a DAX formula. It seems that power BI only wants to include aggregate values such as sum, max, etc.
As a final note, I know that PowerBI includes a percent change "quick measure". However, the 'Base Value' always requires you to select aggregate measure instead of a single row value.
As Alexis mentioned, there is no concept of referring to a specific row in DAX. It can be a hard notion for people who are used to Excel, but if you want to take advantage of PowerBi, you will have to "unlearn" Excel way of thinking.
To accomplish your goal, you need to do some data modeling first. As a common practice, replace your "Date" column with a proper Calendar table:
Calendar table explained
As a result, you will have a data model in PowerBi that looks something like this:
Once you have such structure in place, DAX is simple:
Current Month Cost = SUM(Expenses[Cost])
Previous Month Cost = CALCULATE( [Current Month Cost], PREVIOUSMONTH(Calendar[Date]))
% Change = DIVIDE( [Current Month Cost] - [Previous Month Cost], [Previous Month Cost])
I used Earlier to get the previous date value for Open
Accum = var previousOpen=CALCULATE(MAX(EOG[Open]),FILTER(EOG,EOG[Date]<EARLIER('EOG'[Date],1))) return Divide(EOG[Open]-previousOpen,previousOpen)+1
I have a powerbi report which is running a dax formula to calculate a custom measure. In the picture below, the total at the bottom doesn't seem to add up to the individual rows. I've been trying my luck for some time and can't seem to figure out why this is.
The DAX formula used is as follows
SumRest<24hrs7Day = CALCULATE(
DISTINCTCOUNT(WorkTimeDirective[EmployeeKey]),
FILTER(
ADDCOLUMNS(
SUMMARIZE(WorkTimeDirective,Employee[EmployeeKey],'Date'[DateKey]),
"totRestHrs", CALCULATE(MAX(WorkTimeDirective[RestHours])
,DATESINPERIOD('Date'[DateKey], LASTDATE('Date'[DateKey]), -7, DAY))
),
[totRestHrs]<24
),
WorkTimeDirective[IsEmployeeAbove18]=1
)
Any idea why this is and what I am doing wrong.
For using SUMX the main step is listing the values which you are iterating over, which it typically a table or column. In this case it sounds like you would do a column.
For the example I just had it call the measure you already defined, since breaking DAX calculations into smaller pieces makes writing/testing complex formulas easier.
The idea being that it would iterate over the unique values which are in your TableName[Site Name], then run the [SumRest<24hrs7Day] under that context. I used TableName for the table due to not knowing the name for the table.
SUMX_Example = SUMX( VALUES( TableName[Site Name], [SumRest<24hrs7Day])