markwhilesumle,markwhilesumge

markwhilesumle,markwhilesumge

Marks each cell in specified order until the sum reaches a specified limit.

Result = markwhilesumle(expression1, expression2, limit)

Result = markwhilesumge(expression1, expression2, limit)

expression1

ordinal, spatial

expression2

scalar, spatial, non spatial

limit

scalar, non spatial

Result

boolean, spatial

Operation

Each cell of expression2 is summed in the order specified by the ascending ordinal values in expression1 while the sum of the cells in expression2 is less or equal than limit for markwhilesumle, or greater or equal than limit for markwhilesumge. Result is a boolean map where every cell that matches the condition is marked 1 (True) or 0 (False) otherwise.

Notes

Missing values in expression1 or expression2 will return missing values in Result. expression1 should have an ascending order with no multiple instances of the same number.

Examples

1. • pcrcalc

   binding

   Result2 = Result2.map;

   Expr1 = Expr1.map;

   Expr = Expr.map;

   initial

   report Result2 = markwhilesumge(Expr1, scalar(Expr), 40);

   
   

   • python

   Expr1 = readmap(“Expr1.map”)

   Expr = readmap(“Expr.map”)

   Result2 = markwhilesumge(Expr1, scalar(Expr), 40)

   Result2.map	Expr1.map	Expr.map

   
   
2. • pcrcalc

   binding

   Result1 = Result1.map;

   Expr1 = Expr1.map;

   Expr = Expr.map;

   initial

   report Result1 = markwhilesumle(Expr1, scalar(Expr), 40);

   
   

   • python

   Expr1 = readmap(“Expr1.map”)

   Expr = readmap(“Expr.map”)

   Result1 = markwhilesumle(Expr1, scalar(Expr), 40)

   Result1.map	Expr1.map	Expr.map