v.class
Vector (v.*)
ParameterVector|map|map|-1|False
ParameterTableField|column|column|map
ParameterString|where|where|
ParameterSelection|algorithm|algorithm|int;std;qua;equ;dis
ParameterNumber|nbclasses|nbclasses|2.0|None|3
ParameterBoolean|-g|-g|True
