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1、绘制直方图 x = randn(1000,1; subplot(1,2,1;hist(x; subplot(1,2,2;hist(x,8; 250 300 200 250 200 150 150 100 100 50 50 0 -4 -2 0 2 4 0 -4 -2 0 2 4 6离.散数据图形： stem(x,y / stairs(x,y / stem3(x,y,z 二维离散图形、二维阶跃图形、三维离散图形 x = 0:10:360*pi/180; y = sin(x; subplot(2,2,1;plot(x,y; subplot(2,2,2;stem(x,y; subplot(2,2,3
2、;stairs(x,y; t = 0:0.1:10; s = 0.1+i; y = exp(-s*t; subplot(2,2,4;stem3(real(y,imag(y,t;10.50-0.5-110.50-0.5-1024680246810.50-0.5-110501002468-1 -1 0 1 7. 等值线图： contour(x,y,z,n 绘制二维等值线 n = -2:0.2:2; X,Y,Z = peaks(n; contour(X,Y,Z,10; 2 1.5 1 0.5 0 -0.5 -1 -1.5 -2 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 8等.值线图
3、（符号函数）： ezcontour(f, domain,n / ezcontourf(f,domain,n绘制符号函数的等值线。绘制函数-x2*exp(-(x2-(y+12. -10*(x/5-x3-y5*exp(-x2-y2. -1/3*exp(-(x+12-y2; subplot(1,2,1;ezcontour(f,-3,3,49;title(contour; subplot(1,2,2;ezcontourf(f,-3,3,49; title(filled contour; contour 33 filled contour 2 2 1 1 0 0 y -1 y -2 0 x 2 -1 -2 -2 -3 -3 -2 0 x 2 9. 矢量图： quiver(x,y,u,v 绘制矢量像 (x,y 是坐标， (u,v 是待绘制的矢量 n = -2:0.2:2; X,Y,Z = peaks(n; contour(X,Y,Z,10; U, V = gradient(Z, 0.2; hold on quiver(X,Y,U,V;contour 3 2 1.5 2 1 1 0.5 0 0 -0.5 -1 -1 -2 -1.5 -3 -2 -2 y -2 0 x 2 -1 0 1 2
Matlab数据可视化
