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Hi all,
I am new to PowerBI and need some help with DAX I have already created a formula to do this in excel but am having issues in PowerBI. All suggestions are appreciated.
Here is an image of what I am trying to do:
I need to count all intervals that meet a condition and if they do, I want to count how many timestamps in a row this occurs for.
So I need to access the cell in the same calculated column but on cell up. Here is the formula in excel (it is from a large spreadsheet
From 1->2 (image above)
=IF(PJ4>0,TJ3+1,0) (PJ is from raw data, TJ is the data # 2 from the image above)
Again thank you for any help you may have!
Power BI does not support referring to a previous row directly like excel does.
You can work around this.
Add an "Index" column to your data.
In your DAX measure you can use a VAR to store the value
Then use a function like CALCULATE to access the value where the index equal your stored index - 1
VAR cur_index = SELECTEDVALUE(datatable[index])
VAR prev_index = cur_index -1
VAR myValue = CALCULATE(datatable[value],datatable[index] = prev_index)
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