ecoConstraintFit.m

function [fitresult, gof] = ecoConstraintFit(xtest, ytest, ztest)
%CREATEFIT(INDIA,PAKI,INDIADER)
%  Create a fit.
%
%  Data for 'ecoConstraintFit' fit:
%      X Input : xtest
%      Y Input : ytest
%      Z Output: ztest
%  Output:
%      fitresult : a fit object representing the fit.
%      gof : structure with goodness-of fit info.
%
%  See also FIT, CFIT, SFIT.

%  Auto-generated by MATLAB on 30-Nov-2021 20:53:30


%% Fit: 'ecoConstraintFit'.
[xData, yData, zData] = prepareSurfaceData(xtest, ytest, ztest);

% Set up fittype and options.
ft = fittype( 'ecoConstraint(x,y,a,b,c,d)', 'independent', {'x', 'y'}, 'dependent', 'z' );
opts = fitoptions( 'Method', 'NonlinearLeastSquares' );
opts.Display = 'Off';
opts.StartPoint = [0.171186687811562 0.0706046088019609 0.0318328463774207 0.27692298496089];
opts.Lower = [0 0 -Inf -Inf];

% Fit model to data.
[fitresult, gof] = fit( [xData, yData], zData, ft, opts );

% Plot fit with data.
% figure( 'Name', 'ecoConstraintFit' );
% h = plot( fitresult, [xData, yData], zData );
% legend( h, 'ecoConstraintFit', 'indiaDer vs. india, paki', 'Location', 'NorthEast', 'Interpreter', 'none' );
% % Label axes
% xlabel( 'india', 'Interpreter', 'none' );
% ylabel( 'paki', 'Interpreter', 'none' );
% zlabel( 'indiaDer', 'Interpreter', 'none' );
% grid on
% view( -4.3, 6.7 );