GROUP BY with DISTINCT COUNT

[jeanL]

I am looking to calculate the unique customer count from the groupby function.

Python code would be :

df = temp_df.groupby(['product','od_pairs']).agg(total_bookings=('booking_no_id', 'count'),
total_teus=('total_teus','sum'),
total_bl=('bl_amount', 'sum'),
total_cost=('cost', 'sum'),
total_customer=('control_party_name', 'nunique'),
)

How do i incorporate distinct count in the groupby function?

summary_table = GROUPBY( export_data, export_data[customer_segment], export_data[product], export_data[main_service], export_data[vessel_direction], export_data[od_pairs],

"booking_count", COUNTX(CURRENTGROUP(), export_data[booking_no_id]),

"total_teus", SUMX(CURRENTGROUP(), export_data[total_teus]),

"total_bl", SUMX(CURRENTGROUP(), export_data[bl_amount]),

"total_cost", SUMX(CURRENTGROUP(), export_data[cost]),

"total_cust", COUNTX(CURRENTGROUP(), DISTINCT(export_data[control_party_name]))

[jeanL]

Thanks @OwenAuger ! It works.

[OwenAuger · Accepted solution]

Hi @jeanL 

I don't believe there's any way to calculate a distinct count using GROUPBY.

Depending where you need to use this table expression, I would recommend rewriting with SUMMARIZECOLUMNS (if you are materializing this table or running as a query) otherwise with SUMMARIZE:

(hopefully I interpreted your intended result correctly):

SUMMARIZECOLUMNS version

summary_table =
SUMMARIZECOLUMNS (
    export_data[customer_segment],
    export_data[product],
    export_data[main_service],
    export_data[vessel_direction],
    export_data[od_pairs],
    "booking_count", COUNT ( export_data[booking_no_id] ),
    "total_teus", SUM ( export_data[total_teus] ),
    "total_bl", SUM ( export_data[bl_amount] ),
    "total_cost", SUM ( export_data[cost] ),
    "total_cust", DISTINCTCOUNT ( export_data[control_party_name] )
)

ADDCOLUMNS/SUMMARIZE version

summary_table =
ADDCOLUMNS (
    SUMMARIZE (
        export_data,
        export_data[customer_segment],
        export_data[product],
        export_data[main_service],
        export_data[vessel_direction],
        export_data[od_pairs]
    ),
    "booking_count", CALCULATE ( COUNT ( export_data[booking_no_id] ) ),
    "total_teus", CALCULATE ( SUM ( export_data[total_teus] ) ),
    "total_bl", CALCULATE ( SUM ( export_data[bl_amount] ) ),
    "total_cost", CALCULATE ( SUM ( export_data[cost] ) ),
    "total_cust", CALCULATE ( DISTINCTCOUNT ( export_data[control_party_name] ) )
)

Regards,

Owen