MATLAB 2D plotyy()

by Online Tutorials Library July 14, 2022

MATLAB plotyy()

It creates graphs with y-axes on both the left and right sides.

Syntax

  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.  

Example

  y_1=e^-x sinx,0≤t≤10  y_2=e^x  x= 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’);  

Output:

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MATLAB 2D plotyy()

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Syntax

Example

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