plotyy (MATLAB Function Reference)

Create graphs with y axes on both left and right side

plotyy(X1,Y1,X2,Y2)
plotyy(X1,Y1,X2,Y2,'function')
plotyy(X1,Y1,X2,Y2,'function1','function2')
[AX,H1,H2] = plotyy(...)

Description

plotyy(X1,Y1,X2,Y2) plots X1 versus Y1 with y-axis labeling on the left and plots X2 versus Y2 with y-axis labeling on the right.

plotyy(X1,Y1,X2,Y2,'function') uses the plotting function specified by the string 'function' instead of plot to produce each graph. 'function' can be plot, semilogx, semilogy, loglog, stem or any MATLAB function that accepts the syntax:

h = function(x,y)

plotyy(X1,Y1,X2,Y2,'function1','function2') uses function1(X1,Y1) to plot the data for the left axis and function1(X2,Y2) to plot the data for the right axis.

[AX,H1,H2] = plotyy(...) returns the handles of the two Axes created in AX and the handles of the graphics objects from each plot in H1 and H2. AX(1) is the left Axes and AX(2) is the right Axes.

Examples

Create a graph using the plot function and two y-axes:

t = 0:pi/20:2*pi;
y1 = sin(t);
y2 = 0.5*sin(t-1.5);
plotyy(t,y1,t,y2,'plot')