Question

matlab

D [10 pts Consider following data points Groups a) Use linear interpolation method to fit data. Use 'interp1 b) Fit data with a cubie spline. Use "spline e) Fit a 4h degree polynomial using "polyf Tools Help Make a figure for each of the interpolation methods. In each figure show data points using ocircle marks, a curve that eorresponds to the interpolation method

Answer 1

`Hey,

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x=0:5;
y=[1,-0.6242,-1.4707,3.2406,-0.7366,-6.3717];
xx=0:0.01:5;
yy=interp1(x,y,xx);
figure;
plot(xx,yy,x,y,'o');
title('Linear fit');
yy=spline(x,y,xx);
figure;
plot(xx,yy,x,y,'o');
title('Spline fit');
C=polyfit(x,y,4);
yy=polyval(C,xx);
figure;
plot(xx,yy,x,y,'o');
title('4th order fit');

MATLAB R2018a EDITOR Figure ② ▼| rch Documentation Log In naertfEile Edit View Insert Iools Desktop Wndow Help Find Files Compare ▼ Print GoTo▼ Comment New Open Save Desktop岦indow Help Find Indent Linear fit 4th order fit Figure 2 ile Edit yew Insert lools Desktop yǐndow 브elp Spline fit -2 -4 -2 0 0.5 15 2 2.5 3 3.5 445 5 0 0.5 115 22.53 3.5 4 4.5 5 0 0.5 1522.5 3 3.5 4 45 5 Ln 19 Col 17 O Type here to search ENG 4:58 AM US 04/09/19

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