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Variables

Main.Variables History

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June 16, 2015, at 12:42 PM by 45.56.3.184 -
Deleted lines 28-31:
(:cellnr:)
Global variable name for variable ''v0'' in model ''example'' and file ''test.apm'' solved in a steady-state ''ss'' simulation.

  ss.test.example.v0
June 16, 2015, at 12:41 PM by 45.56.3.184 -
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June 16, 2015, at 12:40 PM by 45.56.3.184 -
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     v0                ! no initial value provided - default = 1
to:
     v0                ! no initial value, default = 1
September 25, 2008, at 02:10 PM by 158.35.225.230 -
Changed line 30 from:
Global variable name for variable ''v0'' in model ''example'' and file ''test'' solved in a steady-state ''ss'' simulation.
to:
Global variable name for variable ''v0'' in model ''example'' and file ''test.apm'' solved in a steady-state ''ss'' simulation.
September 25, 2008, at 02:10 PM by 158.35.225.230 -
Changed lines 30-31 from:
 Global variable name for variable ''v0'' in model ''example'' and file ''test'' solved in a steady-state ''ss'' simulation.
to:
Global variable name for variable ''v0'' in model ''example'' and file ''test'' solved in a steady-state ''ss'' simulation.
September 25, 2008, at 02:09 PM by 158.35.225.230 -
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!!! Global Name

Variables are identified by the simulation mode, file name, model or object name, and variable name.  These names are separated by a period to form a global name.  These global names are used in configuration files to identify the variable.

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 ! Example variable declarations
to:
 ! Example variable declarations in test.apm
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(:cellnr:)
 Global variable name for variable ''v0'' in model ''example'' and file ''test'' solved in a steady-state ''ss'' simulation.
  ss.test.example.v0
September 25, 2008, at 01:15 PM by 158.35.225.230 -
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 ! Example model that demonstrates parameter declarations
to:
 ! Example variable declarations
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     p0                ! no initial value provided - default = 1
    p1 = 1.5          ! initializes to 1.5
    p2 = 2 * p1        ! initializes to 3.0
    p3 = exp(p2) * p1  ! initializes to exp(3.0) * 1.5
    my_parameter = 1  ! initializes to 1.0
to:
     v0                ! no initial value provided - default = 1
    v1 = 1.5          ! initializes to 1.5
    v2 = 2 * p1        ! initializes to 3.0
    v3 = exp(p2) * p1  ! initializes to exp(3.0) * 1.5
    my_variable = 1  ! initializes to 1.0
September 25, 2008, at 01:15 PM by 158.35.225.230 -
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   Parameters
to:
   Variables
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   End Parameters
to:
   End Variables
September 25, 2008, at 10:40 AM by 158.35.225.230 -
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!!! Example
September 25, 2008, at 10:39 AM by 158.35.225.230 -
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>><<
September 25, 2008, at 10:39 AM by 158.35.225.230 -
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!!! General Usage

(:table align='center':)
(:cellnr  class='markup1':)
[-'''What to type'''-]
(:cell  class='markup2':)
[-'''What it looks like'''-]
(:tableend:)

!!![[#lists]] Scope
(:markup class=horiz:)
All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Variables that are part of objects have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.
(:markupend:)

September 25, 2008, at 10:38 AM by 158.35.225.230 -
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All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Variables that are part of objects have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.
to:
All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Object variables have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.


>>blue<<
(:table border=1 width=50% align=left bgcolor=#EEEEEE cellspacing=0 :)
(:cellnr:)
(:table class='markup horiz' align='left':)
(:cell  class='markup1':)
 ! Example model that demonstrates parameter declarations
 Model example
  Parameters
    p0                ! no initial value provided - default = 1
    p1 = 1.5          ! initializes to 1.5
    p2 = 2 * p1        ! initializes to 3.0
    p3 = exp(p2) * p1  ! initializes to exp(3.0) * 1.5
    my_parameter = 1  ! initializes to 1.0
  End Parameters
 End Model
(:tableend:)
>><<
September 25, 2008, at 10:34 AM by 158.35.225.230 -
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to:
(:table align='center':)
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(:markup class=horiz:)
An empty line

starts a new paragraph.
(:markupend:)

(:markup class=horiz:)
A single newline
usually doesn't affect the layout. 
Use two backslashes\\
to break a line.
[[<<]]
Use three backslashes\\\
for two line breaks.
(:markupend:)

(:markup class=horiz:)
A single backslash \
joins the next line \
to the previous one.
(:markupend:)
September 25, 2008, at 10:31 AM by 158.35.225.230 -
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!!![[#lists]] Lists
to:
!!![[#lists]] Scope
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* lists are created by using asterisks
** more asterisks produce deeper lists
*** the list is terminated
by the first line that is not a list
to:
All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Variables that are part of objects have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.
September 25, 2008, at 10:28 AM by 158.35.225.230 -
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!!! Example

>>blue<<
(:table class='markup horiz' align='left':)
(:cell  class='markup1':)
[@! Example model that demonstrates parameter declarations
Model example
  Parameters
    p0                ! no initial value provided - default = 1
    p1 = 1.5          ! initializes to 1.5
    p2 = 2 * p1        ! initializes to 3.0
    p3 = exp(p2) * p1  ! initializes to exp(3.0) * 1.5
    my_parameter = 1  ! initializes to 1.0
  End Parameters
End Model@]
(:tableend:)
>><<

!!![[#lists]] Lists
(:markup class=horiz:)
* lists are created by using asterisks
** more asterisks produce deeper lists
*** the list is terminated
by the first line that is not a list
(:markupend:)
September 25, 2008, at 10:28 AM by 158.35.225.230 -
Added lines 10-50:


!!! General Usage

(:table class='markup horiz' align='center':)
(:cellnr  class='markup1':)
[-'''What to type'''-]
(:cell  class='markup2':)
[-'''What it looks like'''-]
(:tableend:)

(:markup class=horiz:)
An empty line

starts a new paragraph.
(:markupend:)

(:markup class=horiz:)
A single newline
usually doesn't affect the layout. 
Use two backslashes\\
to break a line.
[[<<]]
Use three backslashes\\\
for two line breaks.
(:markupend:)

(:markup class=horiz:)
A single backslash \
joins the next line \
to the previous one.
(:markupend:)

!!![[#lists]] Lists
(:markup class=horiz:)
* lists are created by using asterisks
** more asterisks produce deeper lists
*** the list is terminated
by the first line that is not a list
(:markupend:)

September 25, 2008, at 10:27 AM by 158.35.225.230 -
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September 25, 2008, at 10:27 AM by 158.35.225.230 -
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!!! [[#next]] next
to:
!!![[#lists]] Lists
(:markup class=horiz:)
* lists are created by using asterisks
** more asterisks produce deeper lists
*** the list is terminated
by the first line that is not a list
(:markupend:)
September 25, 2008, at 10:22 AM by 158.35.225.230 -
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!!! next
to:
!!! [[#next]] next
September 25, 2008, at 10:21 AM by 158.35.225.230 -
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September 25, 2008, at 10:21 AM by 158.35.225.230 -
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September 25, 2008, at 10:21 AM by 158.35.225.230 -
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September 25, 2008, at 10:20 AM by 158.35.225.230 -
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(:markupend:)
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(:markupend:)

(:markup class=horiz:)
September 25, 2008, at 10:19 AM by 158.35.225.230 -
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(:markupend:)

(:markup class=horiz:)

!!! next
September 25, 2008, at 10:08 AM by 158.35.225.230 -
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!!! Variable Scope
to:
!!! Scope
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!!! Variable Example
to:
!!! Example
September 25, 2008, at 10:07 AM by 158.35.225.230 -
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!!! Variable Scope

All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Variables that are part of objects have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.

Deleted lines 27-31:


!!! Variable Scope

All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Variables that are part of objects have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.
September 25, 2008, at 10:07 AM by 158.35.225.230 -
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September 25, 2008, at 10:06 AM by 158.35.225.230 -
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September 25, 2008, at 10:06 AM by 158.35.225.230 -
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September 25, 2008, at 10:05 AM by 158.35.225.230 -
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(:markup class=horiz:)

(:markupend:)
September 25, 2008, at 10:02 AM by 158.35.225.230 -
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(:markup class=horiz:)

(:markupend:)
September 25, 2008, at 09:59 AM by 158.35.225.230 -
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September 25, 2008, at 09:59 AM by 158.35.225.230 -
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September 25, 2008, at 09:59 AM by 158.35.225.230 -
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September 25, 2008, at 09:58 AM by 158.35.225.230 -
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!!! Variable Example
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!!! Variable Scope

All variables have global scope.  This facilitates the exchange of information between models but can also lead to name conflicts.  Variables that are part of objects have the object name pre-pended.  In order to use an object's variable in an equation, a connection must be made to a user-defined variable.
September 25, 2008, at 09:51 AM by 158.35.225.230 -
Added lines 1-21:
!! Variables

Variables are calculated values that represent model states.  Variables are modified by the solver as it searches for a solution.  Each additional variable adds a degree of freedom to the problem.

Variables are declared in the ''Variables ... End Variables'' section of the model file.  The variables may be defined in one section or in multiple declarations throughout the model.  Variable initialization is performed sequentially, from top to bottom.  If a variable does not have an initial value given, a default value of 1.0 is assigned.  Variables may also be a function of other parameters or variable initial conditions.  These initial conditions are processed once as the first step after the model parsing.

(:table class='markup horiz' align='left':)
(:cellnr  class='markup1':)
>>blue<<
[@! Example model that demonstrates parameter declarations
Model example
  Parameters
    p0                ! no initial value provided - default = 1
    p1 = 1.5          ! initializes to 1.5
    p2 = 2 * p1        ! initializes to 3.0
    p3 = exp(p2) * p1  ! initializes to exp(3.0) * 1.5
    my_parameter = 1  ! initializes to 1.0
  End Parameters
End Model@]
>><<
(:tableend:)