nominal
nominal
Data conversion data type nominal data type
Result = nominal(expression)
 expression
 spatial, non spatial
boolean, ordinal, scalar, directional, ldd
 Result
 dimension of expression
nominal
Operation
 If expression is a PCRaster map or a calculation resulting in a PCRaster map, it is converted: if expression is of one of the data types boolean, ordinal or ldd, the cell values on expression are assigned without change to the corresponding cells on Result; if expression is of data type scalar or direction, the values on expression are truncated.
 Or the operation generates a map of nominal data type with one constant value.
If expression is not a PCRaster map, a nominal Result is generated. This is the case if expression is a number. This number must be in the domain of the nominal map type, i.e. a whole value. Result will be a map with the same location attributes as the global clone map; all cells will have the value of expression.
Notes
A cell with missing value on expression is assigned a missing value on Result.
Group
This operation belongs to the group of Conversion and assignment
Examples
• pcrcalc
binding
Result = Result.map;
Expr = Expr.map;
initial
report Result = nominal(Expr);
• python
Expr = readmap(“Expr.map”)
Result = nominal(Expr)
Result.map 
Expr.map 

