Getting Started

Modifying the Graph Data Source

You can link graph data to variables in your workspace. When you change the values contained in the variables, you can then update the graph to use the new data without having to create a new graph. (See also the refresh function.)

Suppose you have the following data:

• x = linspace(-pi,pi,25); % 25 points between - and 
  y = sin(x);
  

Using the plotting tools, create a graph of y = sin(x):

• plottools
  
  
  

New Values for the Data Source

The data that defines the graph is linked to the x and y variables in the base workspace. If you assign new values to these variables and click the Refresh Data button, MATLAB updates the graph to use the new data:

• x = linspace(-2*pi,2*pi,25); % 25 points between -2pi and 2pi
  y = sin(x); % Recalculate y based on the new x values
  
  
  

Examples -- Using MATLAB Plotting Tools

Preparing Graphs for Presentation

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