matlab自带的插值函数interp1的四种插值方法

x=0:2*pi; y=sin(x); xx=0:0.5:2*pi; %interp1对sin函数进行分段线性插值，调用interp1的时候，默认的是分段线性插值 y1=interp1(x,y,xx); figure plot(x,y,'o',xx,y1,'r') title('分段线性插值') %临近插值 y2=interp1(x,y,xx,'nearest'); figure plot(x

>>阅读原文<<