Matlab數(shù)據(jù)可視化-示例.

1、1 Mm 3«a.r»kbTWwwKElara 1.II>*1* KMI -««««Mtaa* “QxiMpun “rewcMr &/w*Ww4 Vi*» *«-f «*<«»«»*wI ：«!«««a* I釈了 卜*-r «-卜tU.»y24 A p«/* rMHMMI ,m«M U I、T M ««H« vw|*t » t

2、*“ > 、)、K_ -tn、s 乃E «，r«M"久W =At«Hk!««««IovXvl /MU"« W <« "Hvf 9 !. W.IMH，. jui«M«<n V H1 凳164(vn4 MlMUR >»«.«>， >繪制直方圖 x = randn(1000,1; subplot(1,2,1;hist(x; subplot(1,2,2;hist(x,8; 250 300 200 2

3、50 200 150 150 100 100 50 50 0 -4 -2 0 2 4 0 -4 -2 0 2 4 6離散數(shù)據(jù)圖形:stem(x,y / stairs(x,y / stem3(x,y,z二維離散圖形、二維階躍圖形、三維離散圖形x = 0:10:360* pi/180; y = sin(x; sub plot(2,2,1; plot(x,y; sub plot(2,2,2;stem(x,y;sub plot(2,2,3;stairs(x,y; t = 0:0.1:10; s = 0.1+i; y = exp (-s*t;sub pl ot(2,2,4;stem3(real(y,im

4、ag(y,t;1 0.5 0 -0.5 -1 1 0.5 0 -0.5 -1 0 2 4 6 8 0 2 4 6 8 1 0.5 0 -0.5 -1 10 5 0 1 0 0 2 4 6 8 -1 -1 0 1 7.等值線圖：contour(x,y,z小繪制二維等值線 n = -2:0.2:2; X,Y,Z= peaks( n; co ntour(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 等 值線圖(符號函數(shù))：ezco ntourf, domai n,n / ezco ntouf(f,doma

5、in,n 繪制符號函數(shù)的等值線。繪制函數(shù)3(1 x2c x2 (y 12222 2x 110( x3 y5e (X 1 y5 3 svmsxy; £= 3(1 -x2*ex卩(-儀八2-儀+1八2. -10*(x/5-x3-y5*ex 卩(幟八2-尸2-1/3*ex 卩(心+1八2-卩2; sub plot(1,2,1;ezco ntourf,- 3,3,49;title('co ntour' sub plot(1,2,2;ezco ntouf(f,-3,3,49; title('filled con tour' con tour 3 3 filled con tour 2 2 1 1 0 0 y -1 y -2 0 x 2 -1 -2 -2 -3 -3 -2 0 x 2 9.矢量圖： quiver(x,y,u,v繪制矢量像(x,y是坐標，(u,v是待繪制的矢量n = -2:022; X,Y,Z= peaks( n; con tour(X,Y,Z,10; U, V = gradie nt(Z, 0.2; hold on quiv