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Anonymous's avatar
Anonymous
Not applicable
5 years ago
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Counta for Completion Status

So i have a form that has lets say 40 questions. I want to track per row how many collumns have data in them and how many are null. Even if i just got the number of null out of total questions that w...
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  • PhilipTreacy's avatar
    PhilipTreacy
    5 years ago

    Hi Anonymous 

     

    Download PBIX with code and sample data.

     

    Here's a solution using Power Query.  This will work for any number of columns.  Open my sample PBIX to see how this works.

    let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WSkxU0lFKSgISQJSSAiRSU5VidaKVYMLJyTAJsDCKeoRqsDBMNUwtXBHc3FgA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t, Column3 = _t, Column4 = _t, Column5 = _t]),
    #"Replaced Value" = Table.ReplaceValue(Source,"",null,Replacer.ReplaceValue,{"Column1", "Column2", "Column3", "Column4", "Column5"}),
    #"Added Index" = Table.AddIndexColumn(#"Replaced Value", "Index", 0, 1, Int64.Type),
    #"Added Custom" = Table.AddColumn(#"Added Index", "Non Null", each List.NonNullCount(List.RemoveLastN(Record.ToList(#"Added Index"{[Index]}),1))),
    #"Added Custom1" = Table.AddColumn(#"Added Custom", "Num of Cols", each List.Count(Record.ToList(#"Added Custom"{[Index]}))-2),
    #"Added Custom2" = Table.AddColumn(#"Added Custom1", "Percentage Null", each ([Num of Cols] - [Non Null]) / [Num of Cols]),
    #"Changed Type" = Table.TransformColumnTypes(#"Added Custom2",{{"Percentage Null", Percentage.Type}}),
    #"Removed Columns" = Table.RemoveColumns(#"Changed Type",{"Index"})
in
    #"Removed Columns"

    Regards

    Phil

v-alq-msft's avatar
v-alq-msft
Community Support
5 years ago

Hi, Anonymous 

 

Based on your description, I created data to reproduce your scenario. The pbix file is attached in the end.

Table:

 

You may create a parameter as below.

 

You may add a new step with the following m codes.

= Table.AddColumn(#"Changed Type", "Not Null Percentage", each List.Count( List.Select(List.Skip(Record.ToList(_),1+Parameter1),each _<>""))/
List.Count( List.Skip(Record.ToList(_),1+Parameter1)))

 

Finally you may modify the parameter to skip n columns to get the final result. When the parameter is 3, here is the result(Only A4 and A5 count).

 

Best Regards

Allan

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.