areaorder

areaorder

Within each area ordinal numbers to cells in ascending order

Result = areaorder(expression, areaclass)
expression
spatial scalar, ordinal
areaclass
spatial boolean, nominal, ordinal
Result
spatial scalar

Operation

Let n be the number of non missing value cells on expression for a specific value of areaclass. These cell values are set in order and numbered on Result in ascending order: the cell with the smallest value on expression is assigned a 1 and the cell with the largest value is assigned a number n. Cells on expression with identical values are assigned consecutive, unique numbers; the order in which these cells are numbered is arbitrarily chosen.

Notes

A cell with missing value on expression or areaclass is not considered in the order operation; it is assigned a missing value on Result.

Group

This operation belongs to the group of Order

Examples

  1. • pcrcalc
    binding
    Result = Result.map;
    Expr = Expr.map;
    AreaClass = AreaClass.map;
    initial
    report Result = areaorder(
    Expr,
    AreaClass) ;

    • python
    Expr = readmap(“Expr.map”)
    AreaClass = readmap(“AreaClass.map”)
    Result = areaorder(
    Expr,
    AreaClass)
    Result.map Expr.map AreaClass.map
    _images/areaorder_Result.png _images/areaorder_Expr.png _images/areaorder_AreaClass.png

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