matlab自帶的插值函數interp1的四種插值方法

x=0:2*pi; y=sin(x); xx=0:0.5:2*pi; %interp1對sin函數進行分段線性插值，調用interp1的時候，默認的是分段線性插值 y1=interp1(x,y,xx); figure plot(x,y,'o',xx,y1,'r') title('分段線性插值') %臨近插值 y2=interp1(x,y,xx,'nearest'); figure plot(x

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