Scratch Parameter formerly called as Declare Parameter, is a parameter whose value is initialized by the user. This parameter value does not change automatically. The user has to write code for assigning its value.

Adding Scratch Parameter

The following fields need to be filled for adding scratch parameter :

Name : This field is used to set the name of the Parameter, which is used to access this parameter in the entire script.
Default Value : If the user gives a default value then the Scratch Parameter will be initialized by this value. User can set scratch parameter values using ns_eval_string.
Retain Previous Value : This option provides a facility to users by which they can able to retain the previous value and also clear the previous value.