src/Scilab2C/SCI2CTests/test001_LinearRegression/SCI2CTmpResultsReports/mainfunction/mainfunction.ast


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 Program
 Name   : mainfunction
 Outputs: <empty>
 Inputs : <empty>
 Statements 
     <EOL>
     <EOL>
     Comment :  Knowing that
     <EOL>
     Comment :  (1) P * (V^gamma) = C
     <EOL>
     Comment :  Where
     <EOL>
     Comment :  P = Pressure
     <EOL>
     Comment :  V = Volume
     <EOL>
     Comment :  gamma,C = constants depending on the particular gas used.
     <EOL>
     Comment :  (2) log10(P) = log10(C) - gamma*log10(V)
     <EOL>
     Comment :  (3) x = log10(V)
     <EOL>
     Comment :  (4) y = log10(P)
     <EOL>
     Comment :  than (2) becomes:
     <EOL>
     Comment :  y = a + b*x;
     <EOL>
     Comment :  Where
     <EOL>
     Comment :  a = log10(C)
     <EOL>
     Comment :  b = -gamma
     <EOL>
     Comment :  Then thanks to this transformation it is possible to perform
     <EOL>
     Comment :  a linear regression to estimate gamma and C!
     <EOL>
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Operation
                  Operands:
                     Operation
                        Operands:
                           Operation
                              Operands:
                                 Operation
                                    Operands:
                                       Number_x: 54.3
                                       Number_x: 61.8
                                    Operator: rc
                                 EndOperation
                                 Number_x: 72.4
                              Operator: rc
                           EndOperation
                           Number_x: 88.7
                        Operator: rc
                     EndOperation
                     Number_x: 118.6
                  Operator: rc
               EndOperation
               Number_x: 194
            Operator: rc
         EndOperation
       Lhs       : 
          Variable: Volume
     EndEqual
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Operation
                  Operands:
                     Operation
                        Operands:
                           Operation
                              Operands:
                                 Operation
                                    Operands:
                                       Number_x: 61.2
                                       Number_x: 49.5
                                    Operator: rc
                                 EndOperation
                                 Number_x: 37.6
                              Operator: rc
                           EndOperation
                           Number_x: 28.4
                        Operator: rc
                     EndOperation
                     Number_x: 19.2
                  Operator: rc
               EndOperation
               Number_x: 10.1
            Operator: rc
         EndOperation
       Lhs       : 
          Variable: Pressure
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : log10
           #lhs   : 1
           Rhs    : 
               Variable: Volume
         EndFuncall
       Lhs       : 
          Variable: x
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : log10
           #lhs   : 1
           Rhs    : 
               Variable: Pressure
         EndFuncall
       Lhs       : 
          Variable: y
     EndEqual
     <EOL>
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Operation
                  Operands:
                     Operation
                        Operands:
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: y
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Operation
                                    Operands:
                                       Variable: x
                                       Number_x: 2
                                    Operator: .^
                                 EndOperation
                           EndFuncall
                        Operator: *
                     EndOperation
                     Operation
                        Operands:
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Operation
                                    Operands:
                                       Variable: x
                                       Variable: y
                                    Operator: .*
                                 EndOperation
                           EndFuncall
                        Operator: *
                     EndOperation
                  Operator: -
               EndOperation
               Operation
                  Operands:
                     Operation
                        Operands:
                           Funcall  : length
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Operation
                                    Operands:
                                       Variable: x
                                       Number_x: 2
                                    Operator: .^
                                 EndOperation
                           EndFuncall
                        Operator: *
                     EndOperation
                     Operation
                        Operands:
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                        Operator: .*
                     EndOperation
                  Operator: -
               EndOperation
            Operator: ./
         EndOperation
       Lhs       : 
          Variable: a
     EndEqual
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Operation
                  Operands:
                     Operation
                        Operands:
                           Funcall  : length
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Operation
                                    Operands:
                                       Variable: x
                                       Variable: y
                                    Operator: .*
                                 EndOperation
                           EndFuncall
                        Operator: *
                     EndOperation
                     Operation
                        Operands:
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: y
                           EndFuncall
                        Operator: *
                     EndOperation
                  Operator: -
               EndOperation
               Operation
                  Operands:
                     Operation
                        Operands:
                           Funcall  : length
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Operation
                                    Operands:
                                       Variable: x
                                       Number_x: 2
                                    Operator: .^
                                 EndOperation
                           EndFuncall
                        Operator: *
                     EndOperation
                     Operation
                        Operands:
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                           Funcall  : sum
                             #lhs   : 1
                             Rhs    : 
                                 Variable: x
                           EndFuncall
                        Operator: .*
                     EndOperation
                  Operator: -
               EndOperation
            Operator: ./
         EndOperation
       Lhs       : 
          Variable: b
     EndEqual
     <EOL>
     <EOL>
     Comment :  Other way to compute a and b
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Funcall  : sum
                 #lhs   : 1
                 Rhs    : 
                     Operation
                        Operands:
                           Operation
                              Operands:
                                 Variable: x
                                 Funcall  : mean
                                   #lhs   : 1
                                   Rhs    : 
                                       Variable: x
                                 EndFuncall
                              Operator: -
                           EndOperation
                           Operation
                              Operands:
                                 Variable: y
                                 Funcall  : mean
                                   #lhs   : 1
                                   Rhs    : 
                                       Variable: y
                                 EndFuncall
                              Operator: -
                           EndOperation
                        Operator: .*
                     EndOperation
               EndFuncall
               Funcall  : sum
                 #lhs   : 1
                 Rhs    : 
                     Operation
                        Operands:
                           Operation
                              Operands:
                                 Variable: x
                                 Funcall  : mean
                                   #lhs   : 1
                                   Rhs    : 
                                       Variable: x
                                 EndFuncall
                              Operator: -
                           EndOperation
                           Number_x: 2
                        Operator: .^
                     EndOperation
               EndFuncall
            Operator: ./
         EndOperation
       Lhs       : 
          Variable: beq
     EndEqual
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Funcall  : mean
                 #lhs   : 1
                 Rhs    : 
                     Variable: y
               EndFuncall
               Operation
                  Operands:
                     Funcall  : mean
                       #lhs   : 1
                       Rhs    : 
                           Variable: x
                     EndFuncall
                     Variable: beq
                  Operator: *
               EndOperation
            Operator: -
         EndOperation
       Lhs       : 
          Variable: aeq
     EndEqual
     <EOL>
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Number_x: 10
               Variable: a
            Operator: .^
         EndOperation
       Lhs       : 
          Variable: C
     EndEqual
     <EOL>
     Equal
       Expression: 
         Operation
            Operands:
               Variable: b
            Operator: -
         EndOperation
       Lhs       : 
          Variable: gamma
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               String: "C"
         EndFuncall
       Lhs       : 
          Variable: ans1
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               Variable: C
         EndFuncall
       Lhs       : 
          Variable: ans2
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               String: "gamma"
         EndFuncall
       Lhs       : 
          Variable: ans3
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               Variable: gamma
         EndFuncall
       Lhs       : 
          Variable: ans4
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               String: "a-aeq"
         EndFuncall
       Lhs       : 
          Variable: ans5
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               Operation
                  Operands:
                     Variable: a
                     Variable: aeq
                  Operator: -
               EndOperation
         EndFuncall
       Lhs       : 
          Variable: ans6
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               String: "b-beq"
         EndFuncall
       Lhs       : 
          Variable: ans7
     EndEqual
     <EOL>
     Equal
       Expression: 
         Funcall  : disp
           #lhs   : 1
           Rhs    : 
               Operation
                  Operands:
                     Variable: b
                     Variable: beq
                  Operator: -
               EndOperation
         EndFuncall
       Lhs       : 
          Variable: ans8
     EndEqual
     <EOL>
     Comment :  plot(Volume,Pressure);
     <EOL>
     Comment :  plot(Volume,(C ./(Volume.^gamma)),'r')
     <EOL>
     Funcall  : return
       #lhs   : 0
       Rhs    : 
           <empty>
     EndFuncall
     <EOL>
 EndProgram