matlab colorbar

The colorbar in MATLAB is a visual representation of the scale used to display the data in a plot. It is usually displayed as a vertical or horizontal bar to the right, left, top or bottom of the main plot.

To add a colorbar to a plot in MATLAB, you can use the `colorbar` function. Here is an example:

% Create a simple scatter plot
x = randn(100,1);
y = randn(100,1);
scatter(x,y);

% Add a colorbar to show the z-values of the points
cb = colorbar;
cb.Label.String = 'Z-values';

In this example, the `scatter` function is used to create a simple scatter plot. Then, the `colorbar` function is used to add a colorbar to the plot. Finally, the `cb.Label.String` property is used to set the label of the colorbar.