fg_07_04.m

英文书《Digital Signal Processing with Examples in MATLAB》附带的MATLAB实例

% fg_07_04   Uniform distributions.
sp_fig(1,9,4);
subplot(1,2,1);
axis([0 1 0 1]);
set(gca,'fontsize',16);
set(gca,'xtick',[.4 .8],'xticklabel',['a';'b']);
ylab=str2mat('    0','1/(b-a)','    1');
set(gca,'ytick',[0 .7 1],'yticklabel',ylab);
set(gca,'position',[0.1300    0.1100    0.3270    0.78]);
line([.4 .4 .8 .8],[0 .7 .7 0],'color','r');
line([0 .8],[.7 .7],'color','k','linestyle',':');
Title('Continuous'); h=0;
h(1)=text(1.04,0,'x'); h(2)=text(0.04,1,'p(x)');

subplot(1,2,2);
axis([0 1 0 1]);
set(gca,'fontsize',16);
set(gca,'xtick',[.4 .8],'xticklabel',['a';'b']);
ylab=str2mat(' 0','1/N',' 1');
set(gca,'ytick',[0 .7 1],'yticklabel',ylab);
set(gca,'position',[0.5780    0.1100    0.3270    0.78]);
N=9; n=linspace(.4,.8,N); y=[0;.7]*ones(1,N);
line(ones(2,1)*n,y,'color','k');
line(n,y(2,:),'color','b','linestyle','none','marker','*');
line([0 .4],[.7 .7],'color','k','linestyle',':');
Title('Discrete');
h(3)=text(1.04,0,'n'); h(4)=text(0.04,1,'P_n');
set(h,'fontsize',16);