count of id

[snifer]

i got a csv file with an id and transaction i need to count for each id how many transaction line there is

in this case for id 8 should be 5

an easy task but i can find out right now im stuck

count row same id

[Anonymous]

@snifer

You can use something like this 

Column =
Var new = Table1[id]
Var Count1 = CALCULATE(
COUNTROWS(Table1),
all(Table1),
Table1[id] = new
)
Return Count1

[snifer]

@Anonymous

Column =
Var new = transactions[CustomerID]
Var Count1 = CALCULATE(
COUNTROWS(transactions),
all(transactions),
transactions[CustomerID] = new
)
Return Count1))

name of table column : transactions[CustomerID]

 I got an error

The syntax for ')' is incorrect. (DAX(Var new = transactions[CustomerID]Var Count1 = CALCULATE(COUNTROWS(transactions),all(transactions),transactions[CustomerID] = new)Return Count1)))).

[Anonymous]

@snifer

Please make sure you have correct opening and closing brackets in your column definition.

I created the column and got no errors 

Column =
Var new = Table1[ID]
Var Count1 = CALCULATE(
COUNTROWS(Table1),
all(Table1),
Table1[ID] = new
)
Return Count1

[snifer]

count =
Var new = transactions[CustomerID]
Var Count1 = CALCULATE(
COUNTROWS(transactions),
all(transactions),
transactions[CustomerID] = new
)
Return Count1

A single value for column 'CustomerID' in table 'transactions' cannot be determined. This can happen when a measure formula refers to a column that contains many values without specifying an aggregation such as min, max, count, or sum to get a single result.

@Anonymous

[Anonymous]

@snifer

are you creating it as column or measure?

The example I gave is for creating a column and not a measure.

[snifer]

@Anonymous

I tried both but same error

[v-jiascu-msft]

Hi @snifer,

That's weird. Can you share some snapshots?

Please also try this one. It's a calculated column.

Column =
CALCULATE (
    COUNT ( transactions[CustomerID] ),
    ALLEXCEPT ( transactions, transactions[CustomerID] )
)

Best Regards,
Dale

[HotChilli]

The simplest way would be to create a measure like this

Measure = COUNTROWS(Table1)

On the report canvas, drag the id field and this measure onto a table visualization