MATLAB函数plotyy() MATLAB函数|MATLAB

【MATLAB函数plotyy()】它创建在左侧和右侧均带有y轴的图形。
句法

plotyy(X1, Y1, X2, Y2) //It plots X1 versus Y1 with y-axis label on the left and plot X2 versus Y2 with y-axis labeling on the right.plotyy(X1, Y1, X2, Y2, 'function') // It uses the plotting function specified by the string 'function' instead of plot to produce each graph. 'function' can be plot, semilogx, semilogy, stem, loglog etc.plotyy(X1, Y1, X2, Y2, 'function1', 'function2') // It uses function1(X1, Y1) to plot the information for the left-axis and function2(X2, Y2) to plot the information for the right axis.[AX, H1, H2] = plotyy(...) // It returns the handles of the two axes generated in AX and the handle of the graphics objects from each plots in H1 and H2. AX (1) is a left axes and AX (2) is a right axes.

例子

y_1=e^-x sinx, 0≤t≤10y_2=e^xx= 1:1:10; y1=exp(-x).*sin(x); y2=exp(x); Ax=plotyy(x, y1, x, y2); hy1=get(Ax(1), 'ylabel'); hy2= get(Ax(2), 'ylabel'); set(hy1, 'string', 'e^-x sin(x)'); set(hy2, 'string', ' e^ x');

输出