plot.subplot.title在matlab中都是啥意思?

plot.subplot.title在matlab中都是啥意思? 短时傅里叶变换程序,MATLABa=wavread('jiasiqi.wav');subplot(2,1,1),plot(a);title('original signal');gridN=256;h=hamming(N);for m=1:Nb(m)=a(m)*h(m)endy=20*log(abs(fft(b)))subplot(2,1,2)plot(y);title('短时谱');grid 看看这个matlab程序错在哪了t=0:0.01:3;k=2;a=-1.5;b=10;f=k*exp((a+i*b)*t);subplot(2,2,1);plot(f,real(f));title('实部');axis([0,3,-2,2]);grid on;subplot(2,2,2);plot(f,imag(f));title('虚部');axis([0,3,-2,2]);grid on;subplot(2,2,3);plot(f,ab 新手使用matlab出现Error using ==> plot Vectors must be the same lengths.subplot(3,1,1)x1=-pi:pi/50:pi;y1=x.*cos(x);plot(x1,y1,'m.')grid on,title('y=xcosx'),xlabel('x轴'),ylabel('y轴')gtext('y=xcosx'),legend('y=xcosx')subplot(3,1,2)x2=pi:pi/50 关于matlab subplot用法x=[0:0.1:6];y=[0:0.1:6];[X,Y]=meshgrid(x,y);Z=X.^2+Y.^2;surf(X,Y,Z)shading interpcolormap(pink)title('三维网格图z=x^2+y^2')这样一个东西 我想把它用subplot显示在左边,那么subplot(1,2,1);后面的plot括 matlab 画图,想加图形注释,哪错了?>> x=0:0.1:10;subplot(2,2,1)plot(x,sin(x),'c-.')xlable(‘x’)ylable(‘y’)title(‘sin(x)’)subplot(2,2,2)plot(x,cos(x),'b:')subplot(2,2,3)plot(x,sin(2*x),'r-*')subplot(2,2,4)plot(x,cos(2*x),'g:o')按 [m n]=size(I)subplot(2,1,1),imshow(I);title({'原图像'});y1=I(4,:);y2=I(5,:);y3=I(6,:);y4=I(7,:);y5=I(8,:);y6=I(9,:);y7=I(10,:);y8=I(20,:)*2;subplot(212)plot(1:n,y8) 程序如下：x=linspace(0,4*pi,100);y1=sin(x);y2=cos(x);y3=sin(x)./(cos(x)+eps);y4=cos(x)./(sin(x)+eps);subplot(2,2,1); plot(x,y1),title('sin(x)');subplot(2,2,2); plot(x,y2),title('cos(x)');subplot(2,2,3); plot(x,y3),title('sin matlab加余弦噪声[x,fs,nbits]=wavread('chi1.wav');fs=16000;M =length (x) ; t=0:1/16000:(M-1)/16000;x1=x+cos(3*pi*t);sound(x1,fs)X=fft(x1,8192);N=8192;n=0:N-1;q=n*2*pi/N;figure(2)subplot(2,1,1);plot(x1);title('add noise 信号波形');subplot(2,1, 大神看看这个matlab程序t=0:0.01:3;k=2;a=-1.5;b=10;f=k*exp((a+i*b)*t);subplot(2,2,1);plot(f,real(f));title('实部');axis([0,3,-2,2]);grid on;subplot(2,2,2);plot(f,imag(f));title('虚部');axis([0,3,-2,2]);grid on;subplot(2,2,3);plot(f,abs(f)); matlab中这句语句有什么作用?delete(findobj(gcf,'type','text'));为什么在程序中有它没它都一样?x=-10:0.1:10;y=10:0.1:20;subplot(221);plot(sin(x));subplot(222);plot(cos(x));subplot(223);plot(y.^2);subplot(224);plot(1./y);delete(fin delete(findobj(gcf,'type','text')); matlab中这句语句的作用是什么?为什么在下面程序中有它没它都一样x=-10:0.1:10;y=10:0.1:20;subplot(221);plot(sin(x));subplot(222);plot(cos(x));subplot(223);plot(y.^2);subplot(224);plot(1./y);d matlab subplot x=1:600;subplot(311);plot(x,f1);title('A点先正常后异常状态');k=-2*pi;axis([k+2*pi,k+4*pi,0,10]);grid onwhile 1if k>max(x)break;endk=k+0.1;axis([k+2*pi,k+4*pi,0,10]); %移动坐标系pause(0.1);endsubplot(312);plot(x,f2);title( matlab二维绘图x=0:0.1*pi:4*pi;y=sin(x);z=cos(x);v=[0,15,-2,2];axis(v)subplot(2,2,1);plot(x,y,'--r');xlable('x-axis');ylable('y=sinx');title('sine function image');subplot(2,2,2);plot(x,z,'-b');xlable('x-axis');ylable('z=cosx');title('cosine funct 为什么这段程序在MATLAB理没有图像输出啊,输出的是空白的图f=sym('exp(-2*t)*exp(j*2*t)*heaviside(t)');F=fourier(f);FT=subs(F,[-2*pi:0.01*pi:2*pi]);subplot(2,1,1);plot([-2*pi:0.01*pi:2*pi],abs(FT));title('f(t)的幅频特性曲线' MATLAB 下面这个代码错在哪里,还有就是什么时候定义函数加‘’syms x;x=-pi:0.01:pi;y=cos(tan(pi*x));subplot(2,2,1);plot(x,y)axis([-pi,-pi/2])subplot(2,2,2);plot(x,y)axis([-pi/2,0])subplot(2,2,3);plot(x,y)axis([0,pi/2])subplot(2,2 MATLAB为什么不显示子图title源代码如下：求更改建议及不显示原因t=0:0.1:10;x=sin(t);subplot(2,2,1);N=1;title('N=1')y=sin(N*t+3);plot(x,y,'--r','LineWidth',2)grid on%加网格subplot(2,2,2);N=2;title('N=2')y=sin(N*t+3);plot(x,y,' MATLAB编程 求大侠改错a=-pi:pi/50:pi;b=pi:pi/50:4*pi;x=1:0.1:8;subplot(1,3,1),plot(a,a.*cos(a))xlabel('x'),ylabel('y'),title('y=xcosx')subplot(1,3,2),plot(b,b.*tan(1/b).*sin(b.^3))gtext('y=xtanxsinx '),axis([3 13 0 100])subplot(1,3,3),plot(x,ex