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## How to count Matching values in One Column based on values in another Column

Good Morning,

I am trying to determine how I can get a count of a matching data fields within 1 column based on another column in order to eventually use it down the line as as a filter in my viual to filter to Mono-line policies.

Essentially I have a table with all active policy data including the Customer Number.  I want to find how many policies are assigned to each Customer Number (as there can be multiple policies to each customer):

Customer Number           Policy Status      Policy Number

1                                         A                       123

2                                         A                       124

1                                         C                       125

1                                         Q                       126

2                                         A                       127

4                                         Q                       128

3                                         A                        129

So in the above example the count of Customer 1 would be "3", Customer 2 would be "2" and Customer 3/4 would both be "1" :

How can I return this count so I can use it as a filter on my viusal later?  Thank you!

1 ACCEPTED SOLUTION
Memorable Member

Hi,

If you want your count by Customer and not by Policy, then I think it should be a calculated column as advised by Tamerj1, but with this :

`Number Policy = CALCULATE( COUNT(TabPolicy[Policy Number ]) ,ALLEXCEPT(TabPolicy ,TabPolicy[Customer Number] ) )`

Or as a measure it would be :
`Count of Policy = VAR CurrentCustomer = SELECTEDVALUE( TabPolicy[Customer Number] )RETURNCALCULATE( COUNT( TabPolicy[Policy Number ] ) , TabPolicy[Customer Number] = CurrentCustomer )`
But it will not be as easy to filter as a column.
Another solution would be to do a pre consolidated table :
`Table Number of Policy = SUMMARIZECOLUMNS(TabPolicy[Customer Number] , "Count Policy" ,COUNT(TabPolicy[Policy Number ] ) )`

Let us know which solution you'll adopt 😉
3 REPLIES 3
Community Support

Hi @amarris ,

Is your problem solved?? If so, Would you mind accept the helpful replies as solutions? Then we are able to close the thread. More people who have the same requirement will find the solution quickly and benefit here. Thank you.

Best Regards,
Community Support Team _ kalyj

Memorable Member

Hi,

If you want your count by Customer and not by Policy, then I think it should be a calculated column as advised by Tamerj1, but with this :

`Number Policy = CALCULATE( COUNT(TabPolicy[Policy Number ]) ,ALLEXCEPT(TabPolicy ,TabPolicy[Customer Number] ) )`

Or as a measure it would be :
`Count of Policy = VAR CurrentCustomer = SELECTEDVALUE( TabPolicy[Customer Number] )RETURNCALCULATE( COUNT( TabPolicy[Policy Number ] ) , TabPolicy[Customer Number] = CurrentCustomer )`
But it will not be as easy to filter as a column.
Another solution would be to do a pre consolidated table :
`Table Number of Policy = SUMMARIZECOLUMNS(TabPolicy[Customer Number] , "Count Policy" ,COUNT(TabPolicy[Policy Number ] ) )`

Let us know which solution you'll adopt 😉
Super User

Hi @amarris

you can create a new calculated column

COUNTROWS (

CALCULATETABLE (

Table,

ALLEXCEPT ( Table, Table[Policy Number] ),

)

)

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