window4total

window4total

Sum the values of the four surrounding cells.

Result = window4total(expression)

expression

scalar, spatial

Result

scalar, spatial

Operation

For each cell sums the values of the four cells which lie above, below, left and right of the cell and assigns the sum to the cell.

Notes

If there is no cell or a cell with a missing value in any of the directions it is taken as a zero.

Examples

1. • pcrcalc

   binding

   Result1 = Result1.map;

   Expr1 = Expr1.map;

   initial

   report Result1 = window4total(Expr1);

   
   

   • python

   Expr1 = readmap(“Expr1.map”)

   Result1 = window4total(Expr1)

   Result1.map	Expr1.map