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Comment:Added affine form.
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SHA3-256: 17fd0d589b23ecbc4aa3339fdc9b21cfb8cb5821c0fb6c87307790eae3c37182
User & Date: gawthrop@users.sourceforge.net on 1998-04-07 08:12:12
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Context
1998-04-07
08:30:20
Initial revision check-in: c4c5a450a2 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
08:12:12
Added affine form. check-in: 17fd0d589b user: gawthrop@users.sourceforge.net tags: origin/master, trunk
05:45:12
Reverted to an older version due to untraceable bug in new version check-in: e4d0928b1a user: gawthrop@users.sourceforge.net tags: origin/master, trunk
Changes
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Modified mttroot/mtt/bin/trans/ode2obs_r from [18594f298c] to [8b50fa41a2].

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# Copyright (c) P.J.Gawthrop 1991, 1992, 1994, 1995, 1996.

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.4  1998/04/07 05:45:12  peterg
## Reverted to an older version due to untraceable bug in new version
##
## Revision 1.3  1996/08/25 10:07:05  peter
## Remove a du state ment causaing touble
##      - but needs more work.
##
## Revision 1.2  1996/08/25 08:38:14  peter
## Error handling added.
##
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MTTGPCNy := 2;
MTTGPCNu := 0;

%%in "$1_sympar.r";
in "$1_ode.r";
%%in "$1_simp.r";

% Read the obs form parameters.
in "$1_obspar.r";

%Create the U vector of input derivatives.
MTTNuu := (MTTGPCNu+1)*MTTNu;
MTTNuu1 := MTTGPCNu*MTTNu;
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  MTTYY(i,1) := MTTY(i,1);
END;

l := MTTNy;
FOR i := 1:MTTGPCNy DO
    FOR j := 1:MTTNy DO
    BEGIN
    l := l+1;
    MTTYY(l,1) := 0;
    FOR k := 1:MTTNx DO %Derivatives wrt x
    BEGIN
      xk := MTTX(k,1);
      MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l-MTTNy,1), xk, 1)*MTTdX(k,1);
    END;
    IF MTTGPCNu>0 THEN
    FOR k := 1:MTTGPCNu DO %Derivatives wrt u
    BEGIN
      uk := MTTUU(1,k);
      MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l,1), uk, 1)*MTTUU(1,k+1);
    END;
  END;
      l := l+1;
      MTTYY(l,1) := 0;
      FOR k := 1:MTTNx DO %Derivatives wrt x
      BEGIN
        xk := MTTX(k,1);
        MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l-MTTNy,1), xk, 1)*MTTdX(k,1);
      END;
      IF MTTGPCNu>0 THEN
      FOR k := 1:MTTGPCNu DO %Non-zero derivatives of u
      BEGIN
        FOR kk := 1:MTTNu DO
        BEGIN
          uk := MTTUU(kk,k);
          MTTYY(l,1) := MTTYY(l,1) + df(MTTYY(l,1), uk, 1)*MTTUU(1,k+1);
        END;
      END;
    END;
END;

%%Create O_x - derivative of YY wrt x
%Matrix MTTO_x(MTTNyy,MTTNx);
%FOR j := 1:MTTNx DO
%  BEGIN
%  xj := MTTX(j,1);
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%      jk := j+(k-1)*MTTNu;
%      MTTO_ux(i,jk) := df(MTTO_u(i,j), xk);
%      END;
%    END;
%  END;


% Try and split the obs function into affine form (O(x,u) = o(x) + h(x)u)
affine := 1;
MTTNuu := (MTTGPCNu+1)*MTTNu;

IF affine=1 THEN
BEGIN
  MATRIX MTTObs_o(MTTNyy,1);
  MATRIX MTTObs_h(MTTNyy,MTTNuu);
  FOR i := 1:MTTNyy DO
  BEGIN
mtt_matrix := MTTYY$
mtt_matrix_n := MTTNy*MTTGPCNy;
mtt_matrix_m := 1;
mtt_matrix_name := "MTTYY"$
    MTTObs_o(i,1) := MTTYY(i,1);
    FOR j := 1:MTTNuu DO
    BEGIN
      %Expand as polynomial in uj
      coeffs := coeff(MTTObs_o(i,1), MTTu(j,1));
      MTTObs_o(i,1) := first(coeffs);
      IF length(coeffs)>1 THEN
        MTTObs_h(i,j) := second(coeffs);
      IF length(coeffs)>2 THEN affine := 0;
    END;
  END;
END;



%%Create the _obs.r file
OUT "$1_obs.r";
affine := affine;

mtt_matrix := MTTYY$
mtt_matrix_n := MTTNyy$
mtt_matrix_m := 1$
mtt_matrix_name := "MTTYY"$
reduce_matrix();

IF affine=1 THEN
BEGIN
  mtt_matrix := MTTObs_o$
  mtt_matrix_n := MTTNyy$
  mtt_matrix_m := 1$
  mtt_matrix_name := "MTTObs_o"$
  reduce_matrix();

  mtt_matrix := MTTObs_h$
  mtt_matrix_n := MTTNyy$
  mtt_matrix_m := MTTNuu$
  mtt_matrix_name := "MTTObs_h"$
  reduce_matrix();
END;

%MTTO_x := MTTO_x;
%MTTO_u := MTTO_u;
%MTTO_uu := MTTO_uu;
%MTTO_ux := MTTO_ux;

write ";END;";
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