createFit.m

function [fitresult, gof] = createFit(x, y, z)
%CREATEFIT(X,Y,Z)
%  Create a fit.
%
%  Data for 'untitled fit 1' fit:
%      X Input : x
%      Y Input : y
%      Z Output: z
%  Output:
%      fitresult : a fit object representing the fit.
%      gof : structure with goodness-of fit info.
%
%  ÁíÇë²ÎÔÄ FIT, CFIT, SFIT.

%  ÓÉ MATLAB ÓÚ 24-Jul-2020 17:28:19 ×Ô¶¯Éú³É


%% Fit: 'untitled fit 1'.
[xData, yData, zData] = prepareSurfaceData( x, y, z );

% Set up fittype and options.
ft = 'linearinterp';

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

% Plot fit with data.
figure( 'Name', 'untitled fit 1' );
h = plot( fitresult, [xData, yData], zData );
legend( h, 'untitled fit 1', 'z vs. x, y', 'Location', 'NorthEast' );
% Label axes
xlabel x
ylabel y
zlabel z
grid on
view( -145.3, 11.4 );