Getting Started

Multiple Data Sets in One Graph

Multiple x-y pair arguments create multiple graphs with a single call to plot. MATLAB automatically cycles through a predefined (but user settable) list of colors to allow discrimination among sets of data. For example, these statements plot three related functions of x, each curve in a separate distinguishing color.

• y2 = sin(x-.25);
  y3 = sin(x-.5);
  plot(x,y,x,y2,x,y3)
  

The legend command provides an easy way to identify the individual plots.

• legend('sin(x)','sin(x-.25)','sin(x-.5)')
  
  
  

Creating a Plot

Specifying Line Styles and Colors