YLABEL Plot Y-axis Label Function

Section: Handle-Based Graphics

Usage

This command adds a label to the y-axis of the plot. The general syntax for its use is 
  ylabel('label')

or in the alternate form 

  ylabel 'label'

or simply 

  ylabel label

You can also specify properties for that label using the syntax 

  ylabel('label',properties...)

Example

Here is an example of a simple plot with a label on the y-axis. 
--> x = linspace(-1,1);
--> y = cos(2*pi*x);
--> plot(x,y,'r-');
--> ylabel('cost');

which results in the following plot.