boolean

Conversion data type to boolean data type

```
Result = boolean(expression)
```

- expression
- spatial, non spatial nominal, ordinal, scalar, directional, ldd
- Result
- dimension of expression boolean

If expression is a PCRaster map or a calculation resulting in a PCRaster map of one of the data types nominal, ordinal, scalar, directional or ldd, converts to a Boolean data type with Boolean cell values, where 1 is TRUE and 0 is FALSE. Each expression cell value not equal to 0 is assigned a 1 (TRUE) on Result; each expression cell value equal to 0 is assigned a 0 (FALSE) on Result. Or it generates a map of boolean data type with one constant value.

If expression has no PCRaster data type, boolean generates a boolean Result. This is the case if expression is a number. This number must be in the domain of the boolean map type, i.e. 0 or 1. Result will be a map with the same location attributes as the *global clone map* ; all cells will have the value of expression.

A cell with missing value on expression is assigned a missing value on Result.

This operation belongs to the group of Conversion and assignment

- • pcrcalcbindingResult = Result.map;Expr = Expr.map;initialreport Result = boolean(Expr);• pythonExpr = readmap(“Expr.map”)Result = boolean(Expr)
Result.map Expr.map