I'm struggling to find a way to create a column in Powerbi that is calculated with the previous row of same column. I've seen similar questions in this forum (namely, How to perform sum of previous cells of same column in PowerBI and DAX - formula referencing itself) and I tried to adapt the indicated solutions to my case but without sucess.
Is it possible to create a calculated column with DAX that replicates what i'm doing in excel? or is it one of those cases that is not possible to create a closed-form formula?
excel example
Many thanks,
Paul
Related
I am relatively new to PowerBI and struggling to accomplish the following task.
I have in total 3 Tables. 2 Tables are available and the 3rd is the outcome I am interested in.
Table 1 is a lookup table with yearly values for each option of a certain property.
Table 2 is a user input table containing the project list with a property that can be equal to one of the options in Table 1.
I am mostly interested in Mapping the projects with their yearly development based on one property. The outcome is represented in Table 3.
At the end of the day, I would like to plot the Sum across all projects against the year column (The 2 columns in red).
I hope someone can help here in finding the appropriate DAX logic. Thanks in advance!
You can bring the tables into a Power BI model, and from the modeling tab you can create relationships to accomplish this. Let me know if this is helpful.
I have the following table in Power BI Desktop table visualization:
I don't like that the same dates are repeated over many rows, and would like to show each day just once. Here's what I mean, this is made with Tableau:
How can I do this in Power BI? Thanks!
I found the answer here: how to group the values in power bi?. It's not as pretty, but it works.
In short:
1: changed the visualization from Table to Matrix
2: moved both the date and the middle column to the "Rows" field of the Matrix
Is it possible to create 2 different columns using one DAX Expression?
I have 2 column, for example Work Done this month and Invoiced Amount. I want to create 2 columns using these.
Work Done - Invoiced and return only positive values (Deferred)
Invoiced - Work Done and return only positive values (Extra)
Note: I know how to add these columns using 2 DAX formula's here, but I would like to know if its possible with one formula.
Samsple Screenshot below:
I believe it is possible but not within the existing table and it strongly depends on the context on which your are calculating. When your calculation is performed on a row level, ADDCOLUMNS could help you out. It allows you to create a new table and add multiple calculated columns.
https://learn.microsoft.com/en-us/dax/addcolumns-function-dax
I hope I'm not missing an easy solution am still getting used to DAX and can't yet find an appropriate logic.
I have a large dataset, >10m rows which I want to test. An identifier column "DocumentNumber" might occur on multiple rows and I want to find where the sum of "Value" over these rows for a given "DocumentNumber" is non-zero.
Tried to use PowerQuery > removed all but these two columns > Group By > DocumentNumber > Sum of Value. However my 32 bit version of Excel appears to run out of memory performing this step Expression.Error: Evaluation ran out of memory and can't continue.
Wrote a DAX measure > Sum of Values and dropped into a pivot table with a view to filtering out the zero values but when I try to drag in the DocumentNumber to rows there are more than a million rows so the table won't render.
Is there a logic I should follow in DAX that would achieve step 2 before bringing it to the pivot table? Can DAX actually create a new table in the data model which is the aggregated and filtered data rather than using a pivot? I believe this is possible in PowerBI but not sure about Excel evironment.
why in power bi calculated columns do not appear in merging or appending two different tables? Is there any way to enable this thing?
I am facing difficulties while merging two tables in which one of the table contains calculated columns.
Calculated columns doesn't appear in query editor. Try adding column in query editor itself if possible.