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wallyy1007

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CODE:
load census
% Calculate fit parameters
[p,ErrorEst] = polyfit(cdate,pop,2);
% Evaluate the fit and the prediction error estimate (delta)
[pop_fit,delta] = polyval(p,cdate,ErrorEst);
% Plot the data, the fit, and the confidence bounds
plot(cdate,pop,'+',...
     cdate,pop_fit,'g-',...
     cdate,pop_fit+2*delta,'r:',...
     cdate,pop_fit-2*delta,'r:');
grid on

figure
area(cdate,pop_fit+2*delta,'FaceColor','blue')
hold on
area(cdate,pop_fit-2*delta,'FaceColor','white')
plot(cdate,pop,'+',...
     cdate,pop_fit,'g-',...

showmethemoney
2Â¥2012-12-14 16:23:42
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