Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Enhance your career with this limited time 50% discount on Fabric and Power BI exams. Ends August 31st. Request your voucher.

Reply
Anonymous
Not applicable

Replicating excel formula | precedent referencing

Hello community,

 

Need help in replicating the following formula in DAX or in power query -

 

In Excel we can easily use precedent referencing but in dax or power query I haven't found anything, i need ut for below use, in first screenshot it's the evaluated values, and in second, formulas behind those, i just need a way i can do the same in power bi at the end,

note that first values are manually entered '0'

 

Sunny_punalkar_0-1684398499373.pngSunny_punalkar_1-1684398535974.png

can anyone please help? need this urgently for a very large database
copy paste the values from below to test out 

Total engine hoursPulse
00
0.80.8
1.651.65
0.31.65
0.31.65
6.17.45
1.157.45
1 ACCEPTED SOLUTION

let
    Source = your_source_table,
    data = List.Buffer(Source[Total engine hours]),
    max_count = List.Count(data),
    pulse = 
        List.Generate(
            () => [i = 0, p = 0],
            (x) => x[i] < max_count,
            (x) => [i = x[i] + 1, p = if (data{i} >= data{x[i]}) then x[p] + data{i} - data{x[i]} else x[p]],
            (x) => x[p]
        ),
    out = Table.FromColumns(Table.ToColumns(Source) & {pulse}, Table.ColumnNames(Source) & {"Pulse"})
in
    out

View solution in original post

6 REPLIES 6
AlienSx
Super User
Super User

Hi, @Anonymous 

let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    data = List.Buffer(Source[Total engine hours]),
    max_count = List.Count(data),
    pulse = 
        List.Generate(
            () => [i = 0, p = 0],
            (x) => x[i] < max_count,
            (x) => [i = x[i] + 1, p = if (data{i} >= data{x[i]}) then x[p] + data{i} - data{x[i]} else x[p]],
            (x) => x[p]
        ),
    out = Table.FromColumns({data, pulse}, {"Total engine hours", "Pulse"})
in
    out
Anonymous
Not applicable

@AlienSx, this sort of solves my issue, but my actual data comes from sql database which has this 'Total engine hours' with multiple other columns, which of the bits i would need to edit then?

let
    Source = your_source_table,
    data = List.Buffer(Source[Total engine hours]),
    max_count = List.Count(data),
    pulse = 
        List.Generate(
            () => [i = 0, p = 0],
            (x) => x[i] < max_count,
            (x) => [i = x[i] + 1, p = if (data{i} >= data{x[i]}) then x[p] + data{i} - data{x[i]} else x[p]],
            (x) => x[p]
        ),
    out = Table.FromColumns(Table.ToColumns(Source) & {pulse}, Table.ColumnNames(Source) & {"Pulse"})
in
    out
Anonymous
Not applicable

I believe this will definitely help, thank you so much!

Do you know if there's a way we can achieve the same through DAX?

DAX - most likely yes but I am not a DAX guy (yet) 😎 

Anonymous
Not applicable

Pretty sure you will reach there very soon, really appreciate your help!

Helpful resources

Announcements
July PBI25 Carousel

Power BI Monthly Update - July 2025

Check out the July 2025 Power BI update to learn about new features.

Join our Fabric User Panel

Join our Fabric User Panel

This is your chance to engage directly with the engineering team behind Fabric and Power BI. Share your experiences and shape the future.

June 2025 community update carousel

Fabric Community Update - June 2025

Find out what's new and trending in the Fabric community.