67xlabel('DJIA收益率(%)');8ylabel('S&P500收益率(%)');9p = polyfit(x,y,1);%1表示一次函数10hold on;11xx = -5:1:40;12yy =polyval(p,xx);13plot(xx,yy,'b-');%画出来的是光滑的曲线14grid;15title('回归分析表')16hold off;17[r,p,rlo,rup] = corrcorf(x,y)%相关分析1819>>...
% X坐标轴刻度标签 'layer4','layer5','layer6'}) % 添加上、右框线 hold on XL = get(gca,'xlim'); XR = XL(2); YL = get(gca,'ylim'); YT = YL(2); xc = get(gca,'XColor'); yc = get(gca,'YColor'); plot(XL,YT*ones(size(XL)),'color', xc,'linewidth',1) plot(XR...
c]=contourf(x,y,pressure,...contourLevels,... % Specify a scalar integer number of contour levels"LineWidth",LineWidth);% Specify the contour line widthaxis([-5,5,... % x-axis limits-5,5]);% y-axis limitscircle(0,0,1);% Call helper function to plot circlexlabel("x/R")ylabel...
plot3([1 2 3],[4 5 6],[7 8 9],[1 2 3],[4 5 6],[10 11 12]) Multiple sets of points (using matrices) Specify at least one of X, Y, or Z as a matrix, and the others as vectors. Each of X, Y, and Z must have at least one dimension that is same size. For best...
Create a line plot and display markers at every fifth data point by specifying a marker symbol and setting the MarkerIndices property as a name-value pair. Get x = linspace(0,10); y = sin(x); plot(x,y,'-o','MarkerIndices',1:5:length(y)) Specify Line Width, Marker Size, and...
Plot Multiple Histograms Copy Code Copy Command Generate two vectors of random numbers and plot a histogram for each vector in the same figure. Get x = randn(2000,1); y = 1 + randn(5000,1); h1 = histogram(x); hold on h2 = histogram(y); Since the sample size and bin width ...
linspace(first,last,number_of_elements) ➤注意!请使用逗号 (,) 分隔linspace函数的输入 最后一位是元素个数! x =linspace(0,1,5) x =00.2500.5000.7501.000 转置向量 linspace和:运算符都可创建行向量。但是,您可以使用转置运算符 (') 将行向量转换为列向量: ...
plot(x2,y2,'r',x2,z2,'g'); h2=get(gca,'Children');%获取所有曲线句柄向量h2 for k=1:size(h2) if get(h2(k),'Color')==[0 1 0] %【0,1,0】表示绿色 h2g=h2(k); end end pause; set(h2g,'LineStyle',':','Marker','p');%对绿色线条进行设置 ...
0000i >> >> whos Name Size Bytes Class Attributes a 1x1 16 double complex b 1x1 16 double complex 2. 使用 complex函数 创建 matlab 中也提供了 complex() 函数用来创建 复数类型,使用方式如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >> c = complex(1,2) c = 1.0000 + 2.0000i...
多项式插值函数:polyfit、polyval和poly2sym【调用案例】>>x1=[1,2,6,10]; y1=[3,2,8,9];>>P=polyfit(x1,y1,3); %用三次多项式,确定插值函数P(降幂形式)>>X=1:0.01:10; Y=polyval(P,X); %构建新数据点X(包含插值点位置),利用P计算对应值Y>>plot(x1,y1,'ro',X,Y) %画图>>Func=ploy2...