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Anonymous
Not applicable

Newbie challenge

Hi,

 

As a PQ newbie I can't solve this simple transformation. The data structure is very simple and obvious for a human. However, PQ can't seem to be able to figure it out with "column from example". I am looking for a solution with minimal manual intervention. Here is the actual dataset and the desired result (bear in mind that there could be 100s of different names and various number of dates for each name) :

al72_2-1701219842622.png

 

 

al72_1-1701219766058.png

 

1 ACCEPTED SOLUTION
watkinnc
Super User
Super User

Simple for a human isn't necessarily simple for a machine...

 

You can add a column like


= Table.AddColumn(PriorStepOrTableName, "Dates", each if Text.Contains([Date], "-") then null else [Date], type text)

 

Now you can just use Fill Down on the new column.

 

--Nate


I’m usually answering from my phone, which means the results are visualized only in my mind. You’ll need to use my answer to know that it works—but it will work!!

View solution in original post

3 REPLIES 3
watkinnc
Super User
Super User

Simple for a human isn't necessarily simple for a machine...

 

You can add a column like


= Table.AddColumn(PriorStepOrTableName, "Dates", each if Text.Contains([Date], "-") then null else [Date], type text)

 

Now you can just use Fill Down on the new column.

 

--Nate


I’m usually answering from my phone, which means the results are visualized only in my mind. You’ll need to use my answer to know that it works—but it will work!!
Anonymous
Not applicable

Excellent! Thank you Nate.

 

There is a little extra step, that is to replace "Error" by "null" before fill down.

 

al72_0-1701263413227.png

 A little less newbie now 🙂

right click on the red line above and select replace errors and then type null

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