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MQL5 ReferenceMatrix and Vector MethodsStatisticsCumSum 

CumSum

Return the cumulative sum of matrix/vector elements, including those along the given axis.

double vector::CumSum();
 
double matrix::CumSum();
 
vector matrix::CumSum(
  ENUM_MATRIX_AXIS  axis      // axis
   );

Parameters

axis

[in]  Axis. ENUM_MATRIX_AXIS enumeration value (AXIS_HORZ — horizontal axis, AXIS_VERT — vertical axis, AXIS_NONE — no axis, calculation along whole matrix).

Return Value

Cumulative sum of the elements along the given axis.

Example

   matrix matrix_a={{10,3,2},{1,8,12},{6,5,4},{7,11,9}};
   Print("matrix_a\n",matrix_a);
 
   matrix cols_cumsum=matrix_a.CumSum(AXIS_HORZ);
   matrix rows_cumsum=matrix_a.CumSum(AXIS_VERT);
   vector cumsum_values=matrix_a.CumSum();
 
   Print("cols_cumsum\n",cols_cumsum);
   Print("rows_cumsum\n",rows_cumsum);
   Print("cumsum values  ",cumsum_values);
 
   /*
   matrix_a
   [[10,3,2]
    [1,8,12]
    [6,5,4]
    [7,11,9]]
   cols_cumsum
   [[10,3,2]
    [11,11,14]
    [17,16,18]
    [24,27,27]]
   rows_cumsum
   [[10,13,15]
    [1,9,21]
    [6,11,15]
    [7,18,27]]
   cumsum values  [10,13,15,16,24,36,42,47,51,58,69,78]
   */