huntu.m

谱估计源程序：是谱估计中的经典算法esprit,MUSIC等算法的源程序

x = 0:pi/100:2*pi;
y = sin(x);
plot(x,y)
xlabel('x = 0:2\pi')
ylabel('Sine of x')
title('Plot of the Sine Function','FontSize',12)


x = 0:pi/100:2*pi;
y = sin(x);
y2 = sin(x-.25);
y3 = sin(x-.5);
plot(x,y,x,y2,x,y3)
legend('sin(x)','sin(x-.25)','sin(x-.5)')


It is possible to specify color, line styles, and markers (such as plus signs or circles) when you plot your data using the plot command. plot(x,y,'color_style_marker')

color_style_marker is a string containing from one to four characters (enclosed in single quotation marks) constructed from a color, a line style,
and a marker type: Color strings are 'c', 'm', 'y', 'r', 'g', 'b', 'w', and 'k'. These correspond to cyan, magenta, yellow, red, green, blue, white, and black.
Line style strings are '-' for solid, '--' for dashed, ':' for dotted, '-.' for dash-dot. Omit the line style for no line. The marker types are '+', 'o', '*', and 'x', 
and the filled marker types are 's' for square, 'd' for diamond, '^' for up triangle, 'v' for down triangle, '>' for right triangle, '<' for left triangle, 'p' for pentagram,
'h' for hexagram, and none for no marker
    
 
x1 = 0:pi/100:2*pi;
x2 = 0:pi/10:2*pi;
plot(x1,sin(x1),'r:',x2,sin(x2),'r+')
    
t = 0:pi/10:2*pi;
plot(exp(i*t),'-o')
axis equal

axis([xmin xmax ymin ymax zmin zmax])

t = -pi:pi/100:pi;
y = sin(t);
plot(t,y)
axis([-pi pi -1 1])
xlabel('-\pi \leq {\itt} \leq \pi')
ylabel('sin(t)')
title('Graph of the sine function')
text(1,-1/3,'{\itNote the odd symmetry.}')