setParam ( paramname, newvalue )
Set the value of a parameter to a new value. Note that existing models that are stored inside Python data structures (lists, dictionaries, etc.), or inside user classes aren't affected.
paramname: String containing the name of parameter that you would like to modify. The name can include '*' and '?' wildcards. If more than one parameter matches, the matching names are listed and none are modified. Note that case is ignored.
newvalue: Desired new value for parameter. Can be 'default', which indicates that the parameter should be reset to its default value.
setParam("Cuts", 2) setParam("Heu*", 0.5) setParam("*Interval", 10)