Aggr & aggr(max)

[#1]

Hi,

I am really confused to use aggr function as am not clear reg. the difference between

sum(Aggr(Total_Payment), ID)

and

sum(Aggr(max(total_payment), ID))

Please help me understanding the difference.

Thanks,

Rohini. M

[Anil_Babu_Samineni]

First one is simple Aggregation which values from ID based on Total_Payment

Second one is Only get which is the Maximum value from Total_Payment which Calc part should ID

OR

Check by your hand using this

1) Sum({<total_payment=>}ID)

2) Sum({<total_payment= {"$(=Max(total_payment))"}>}ID)

[tresB]

sum(Aggr(Total_Payment), ID) - Using aggr() without any aggregation function inside doesn't make much of sense.

sum(Aggr(max(total_payment), ID)) - This gives you sum of all the max values of Total_Payment against each IDs.

To understand such expression, best to create a sample and try to understand the output.