Data Profiling in M: Count of Numeric Values (Table.Profile)

[pucities]

Hello,

I created a data profiling table in Power Query from a table(T_File)

let
Source = Table.Profile(T_File)
in
Source

How do I add another aggregate column to the data profile table that shows the count of numeric values?

I found an arcticle which shows how to add aggregate columns 

https://blog.crossjoin.co.uk/2019/07/31/adding-more-aggregate-columns-to-the-output-of-table-profile...

   Table.Profile(

        Source,

        {

        {"Median", each Type.Is(_, type number), List.Median},

        {"Mode", each Type.Is(_, type number), List.Mode}

        }

    )

But I can't seem to figure out how to count numeric values from varchar formatted field.

Thank you

[v-juanli-msft]

Hi @pucities 

Before Profile, please change type of your column from varchar to number format.

Please pay attention to the notes below:

The second part: A function to call to determine where the aggregate column will be applied to a given column in the source table. In this case I’m checking to see if a column is type number and only returning a median or mode if it is.

Reference:

https://ssbi-blog.de/blog/technical-topics-english/pitfalls-with-table-columnsoftype/

Best Regards
Maggie
Community Support Team _ Maggie Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[ImkeF]

Hi @pucities 

not sure if my understanding is correct, but you could use the function List.Count to count the occurrances instead:

   Table.Profile(

        Source,

        {

        {"Count", each Type.Is(_, type number), List.Count},

        {"Mode", each Type.Is(_, type number), List.Mode}

        }

    )

[pucities]

Thanks for your reply. 

I should have been more specific in my question. 

The column type is varchar(Text) so I get "null"  when I use this function:    {"Count", each Type.Is(_, type number), List.Count},

Currently, the column that I'm interested in contains both numeric and alphanumeric values. But I want the count of only numeric records.

For example, from the following list, I want to return 1.

12356

13BA3

352B1

Thank you

[ImkeF · Accepted solution]

Hi @pucities 

Please try this:

List.Count(List.Select( Source[Column1], each try Value.Is(Number.From(_), type number) otherwise null))