Flow Control Primitives

Assignments¶

Primitive	Description
dim	Dimensioned variable array
Assign	Operator x=y, sets variable x equal to the value y
Compound Assignment	Operator x??=y, arithmetic operation and assignment

Primitive	Description
Procedure	Operator {x,y,...}, evaluates a series of steps in a new namespace
Parentheses	Operator (x,y,...), evaluates a series of steps in the current namespace
Function Call	Operator x(), calls a function

Primitive	Description
Conditional	Operator x?y:z, if...then...else conditional
About the If Statement	If...then...else conditional Function form of if...then...else conditional
About the Switch Statement	Keyword - defines a switch statement

Primitive	Description
About the While statement	While loop
About the Do/While Statement	Keyword - defines a do()..while() loop
About the For Statement	For...next loop
About the For/In Statement	For...in loop
makelist	List of f(n) over a range of n
each	Applies a function to each element in a list
eachn	Applies a function to each element in a list with incrementing index
both	Applies a function to groups of corresponding elements in two lists
Dolist and Domatrix	Keyword - applies a function to parallel lists of input data Keyword - applies a function to independent lists of input data

Primitive	Description
About the Continue Statement	Skips part of a for or while loop
About the Break Statement	Terminates a for or while loop
About the Return Statement	Returns the specified value from a function call
gate	Stops calculation when Logical Look-Ahead is active
err	Sets the error flag and terminates calculation
mask	Prevents calculation errors from terminating execution
maskcancel	Prevents the Cancel button from terminating execution
maskall	Prevents all errors from terminating execution
setinterval	Sets an interrupt that is called periodically during long calculations
sleep	Pauses execution for a specific amount of time

Primitive	Description
OnEnd	Node executed just before a model, component, or DLM ends
OnLoad	Node executed when a model, component, or DLM is loaded
OnStart	Node executed when a model, component, or DLM is started
Resource Tree	Node executed to load the resource tree for a model
primitive	Executes a command in the Primitive namespace
model	Executes a command in the Model namespace
unit	Executes a command in the Unit namespace
user	Executes a command in the User namespace
elapsedtime	Amount of time the current model has been open
namespace	Execute a command in the specified namespace

Primitive	Description
Time Assignment	Operator x?=y, assigns a time to a node value
Time Value	Operator x{y}, value of x at time y in a time-based analysis
t	Current execution time in a time-based model
t0	Date and time serial number corresponding to the Period zero date.
pvx	Present value of a cash stream
tx	Date and time serial number equivalent of the period index t
dt	Period length in a time-based model