Code library

Signed-off-by: 刘明宏 <liuminghong@mail.sdu.edu.cn>

lib/smooth1qExample.m

@@ -0,0 +1,30 @@
+  % Simple curve
+  x = linspace(0,100,200);
+  y = cos(x/10)+(x/50).^2 + randn(size(x))/10;
+  z = smooth1q(y,[]);
+  plot(x,y,'r.',x,z,'k','LineWidth',2)
+  axis tight square
+
+  % Periodic curve with ouliers and missing data
+  x = linspace(0,2*pi,300);
+  y = cos(x)+ sin(2*x+1).^2 + randn(size(x))/5;
+  y(150:155) = rand(1,6)*5;
+  y(10:40) = NaN;
+  subplot(121)
+  z = smooth1q(y,1e3,'periodic');
+  plot(x,y,'r.',x,z,'k','LineWidth',2)
+  axis tight square
+  title('Non robust')
+  subplot(122)
+  z = smooth1q(y,1e3,'periodic','robust');
+  plot(x,y,'r.',x,z,'k','LineWidth',2)
+  axis tight square
+  title('Robust')
+
+  % Lima鏾n
+  t = linspace(0,2*pi,300);
+  x = cos(t).*(.5+cos(t)) + randn(size(t))*0.05;
+  y = sin(t).*(.5+cos(t)) + randn(size(t))*0.05;
+  z = smooth1q(complex(x,y),[],'periodic');
+  plot(x,y,'r.',real(z),imag(z),'k','linewidth',2)
+%   axis equal tight