Count distinct values in one column, grouped by another column

[SteveIves]

I'm quite new to Power BI and I think this is probably very easy, but I've been trying to work out a solution for several days an I can't work it out.

My data consists of a top-level category (unlimited in number) and a limited set of sub-categories, similar to this:

Make	Type
Ford	SUV
Ford	Hatchback
Ford	Convertible
Ford	Pickup
VW	SUV
VW	Hatchback
Nissan	Pickup
Nissan	SUV
Nissan	Hatchback
Jaguar	Convertible
Jaguar	SUV

I want to add a column that simply shows how many 'types' each manufacturer offers, so the output would be:

Make	Type	Count of Type
Ford	SUV	4
Ford	Hatchback	4
Ford	Convertible	4
Ford	Pickup	4
VW	SUV	2
VW	Hatchback	2
Nissan	Pickup	3
Nissan	SUV	3
Nissan	Hatchback	3
Jaguar	Convertible	2
Jaguar	SUV	2

as I want to be able to filter on (for example) manufacturers offering more than 2 types of vehicle. 

I can create a simple stacked column chart with Make onthe x-axis and Type on the y-axis (with Type as the legend) to get:

but if I filter this visual on 'Count of Type is greater than 2', it shows nothing because for each individual row, the count of Type is 1.

How can I create a column that shows the number of distinct Types by Make, or am I looking at this incorrectly?

Thanks

[Meaker]

I've tried to apply this logic to my requirement, but am returning an error.  The difference being that I want to count the number of times an individual item reference appears within a set of data:

Part No	Date Received
CXV1	15/02/2024
XC333	02/11/2023
XC333	01/11/2023
CXV1	05/10/2023
ABX123	06/09/2023
ABX123	04/09/2023
XC333	11/06/2023
CXV1	31/05/2023
XC333	05/05/2023
ABX123	01/04/2023
ABX123	17/03/2023
CXV1	03/03/2023
ABX123	02/02/2023

I'm receiving an error message:

DAX comparison operations do not support comparing values of type Text with values of type Integer. Consider using the VALUE or FORMAT function to convert one of the values.

[Pragati11 · Accepted solution]

HI @SteveIves ,

You can create a calculated column in Power BI using the following DAX measure:

Count of Type by Make = // calculated column to get count of Type by Make
CALCULATE(
    COUNT('Model Data'[Type]), // counting the Type
    FILTER(
        'Model Data', // filtering the table to get the count of type groupoed by Make
        'Model Data'[Make] = EARLIER('Model Data'[Make])
    )
)

You will get the result as follows:

Hope this helps.

[SteveIves]

Perfect! Thanks Pragati 😀