cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
pucities
Frequent Visitor

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

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

 

 

 

1 ACCEPTED SOLUTION

Hi @pucities 

Please try this:

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

 

Imke Feldmann (The BIccountant)

If you liked my solution, please give it a thumbs up. And if I did answer your question, please mark this post as a solution. Thanks!

How to integrate M-code into your solution -- How to get your questions answered quickly -- How to provide sample data -- Check out more PBI- learning resources here -- Performance Tipps for M-queries

View solution in original post

4 REPLIES 4
v-juanli-msft
Community Support
Community Support

Hi @pucities 

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

Capture12.JPG

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
Super User II
Super User II

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}
        }
    )

 

Imke Feldmann (The BIccountant)

If you liked my solution, please give it a thumbs up. And if I did answer your question, please mark this post as a solution. Thanks!

How to integrate M-code into your solution -- How to get your questions answered quickly -- How to provide sample data -- Check out more PBI- learning resources here -- Performance Tipps for M-queries

pucities
Frequent Visitor

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

Hi @pucities 

Please try this:

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

 

Imke Feldmann (The BIccountant)

If you liked my solution, please give it a thumbs up. And if I did answer your question, please mark this post as a solution. Thanks!

How to integrate M-code into your solution -- How to get your questions answered quickly -- How to provide sample data -- Check out more PBI- learning resources here -- Performance Tipps for M-queries

View solution in original post

Helpful resources

Announcements
PBI User Groups

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group!

MBAS on Demand

Microsoft Business Applications Summit sessions

On-demand access to all the great content presented by the product teams and community members! #MSBizAppsSummit #CommunityRocks

Get Ready for Power BI Dev Camp

Power BI Dev Camp - June 24th

Mark your calendars and join us for our next Power BI Dev Camp!

Top Solution Authors
Top Kudoed Authors