### CREATE

The CREATE module generates arriving entities to a model and may also specify initial attributes and variable assignments to be made at the time the entity is created. Entities may arrive in batches or individually.

Prompt | Valid Entry | Default
Batch Size | Expression truncated to integer | 1
First Arrival | Expression | (0.0)
Time Between | Expression (distributions) | Create only one batch
Max Batches | Expression truncated to integer | (infinite)
Mark Attribute | Symbol name [ attributes] | Creation time not saved
Assignment Type | Attribute, variable or other | Attribute
Attribute | Symbol name [ attributes] | Required
Variable | Symbol name [ attributes] | Required
Row | Expression | -
Column | Expression | -
Other | Assignable variable | Required
Value | Expression | Required
(Picture assignment) | Picture, Picture set, non | Picture
Initial Picture | Symbol name (pictures) | Default
Picture Set | Symbol name [picture sets] | Required
Set Index | Expression truncated to integer | Required

Examples :

Prompt | Value First Arrival | 5.0
Time between | 20

The first arrival will occur after 5.0 time units and will continue there-after every 20 time units. All other parameters assume default values (e.g. the batch size is one and no picture is defined for animation).

Prompt | Value Batch Size | 5
Time Between | EXP(4)
Max Batches | 200
Mark Attribute | Time_in

The first arrival will occur at time 0 and will consist of 5 entities. Thereafter new batches of 5 will be created with an exponential time distribution with a mean of 4. After 200 batches have been created no more will be generated. For each entity the attribute Time_in will be given the value TNOW, the current simulation time.