MQL5 ReferenceMatrix and Vector MethodsStatisticsProd

Prod

Return the product of the matrix/vector elements which can also be performed for the given axis.

double vector::Prod(
  const double  initial=1      // initial multiplier
   );

double matrix::Prod(
  const double  initial=1      // initial multiplier
   );

vector matrix::Prod(
  ENUM_MATRIX_AXIS  axis,          // axis
  double            initial=1      // initial multiplier
   );

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).

initial=1

[in] Initial multiplier.

Example

   matrix matrix_a={{10,3,2},{1,8,12},{6,5,4},{7,11,9}};
   Print("matrix_a\n",matrix_a);

   vector cols_prod=matrix_a.Prod(AXIS_HORZ);
   vector rows_prod=matrix_a.Prod(AXIS_VERT);
   double matrix_prod=matrix_a.Prod();

   Print("cols_prod=",cols_prod);
   cols_prod=matrix_a.Prod(0,0.1);
   Print("cols_prod=",cols_prod);
   Print("rows_prod=",rows_prod);
   Print("prod value ",matrix_prod);

  /*
   matrix_a
   [[10,3,2]
    [1,8,12]
    [6,5,4]
    [7,11,9]]
   cols_prod=[420,1320,864]
   cols_prod=[42,132,86.40000000000001]
   rows_prod=[60,96,120,693]
   prod value 479001600.0
  */

Sum

CumSum