linest_m() and aggr() Calculation problem

[#1]

Hello! I have problem with the following expression of linest_m() and aggr():

LINEST_M

(
     total aggr(

          RangeSum(
         above(
               sum(if(TYPE=TYPE_01 ,1,0))  

          ,0, RowNo())
          )
     ,DT_TIME_05)

,DT_TIME_05

)

The aggr() cumulates the result of sum() with DT_TIME_05. Actullay, this does return a result but the result is not correct, which means it does not correspond  the regression line drawn by:

  RangeSum(
         above(
               sum(if(TYPE=TYPE_01 ,1,0))    

          ,0, RowNo())
          )

I think the problem might be that aggr() returns a group of datas that are not in order of DT_TIME_05. 

Does anyone have any idea about this problem?  Thank you so much for your response!!!