statistics calculation according to a particular feature

h? All;

 

There is a yield of 30 thousand lines .

 

I want to calculate statistics by grouping by a column.

 

I have to print the total number of values in the column I want to calculate. my data =>

I make group according to mahalle_uavt column.

 

I want to calculate the BASVURU_TIPI column.

 

how many 'TALEP' values are there.

as a result ==>

 

 

I couldn't do it with StatisticsCalculator.

I could not get what I wanted with UniqueValueLogger. (no group_by)

 

how can i do the fastest way.

 

Thank You.