Library sdo

Contains a parser for vensim mdl files and extensions to formulate an optimization problem:

Parser for vpd-Files which contains the objective
Parser for voc-Files which adds controls to the problem
Parser for vop-Files which bundle vpd-, mdl- and voc-Files to define an optimization problem

Build/Install

List of supported vensim functions

States

INTEG
SMOOTH/SMOOTHI (gets reformulated with INTEG creates 1 state)
SMOOTH3/SMOOTH3I (gets reformulated with INTEG creates 3 states)
DELAY1/DELAY1I (gets reformulated with INTEG creates 1 state)
DELAY3/DELAY3I (gets reformulated with INTEG creates 3 states)
DELAYP (gets reformulated with INTEG creates 3 states and 1 algebraic )

Special constants

FINAL TIME
INITIAL TIME
TIME STEP
TIME (Use of current time in expression)

Arithmetic

Basic arithmetic: + - * /
Infix pow operator: **
EXP
LN
LOG
POWER
SQRT

Other

DELAY FIXED
ACTIVE_INITIAL
INITIAL
WITH LOOKUP
PULSE TRAIN
PULSE
RAMP
STEP
RANDOM UNIFORM

Trigonometric

SIN
COS
TAN
TANH
SINH
COSH
ARCSIN
ARCCOS
ARCTAN

Nonsmooth

ABS
MIN
MAX
MODULO
INTEGER

Logical

IF THEN ELSE
Operator
= Operator
< Operator
<= Operator
= Operator
:AND:
:OR:
:NOT: