I want to use a words like, let\'s say, \'A\', \'B\' and \'C\' on X-axis to show their corresponding properties on Y-axis. How can I write these strings on X-axis instead of
You can also do this using the GUI.
1) Click on the figure axes to to open the Axes Property Editor.
2) Click on the "More properties" button on the right side of the window. This will open the inspector window of the axes.
3) Click on the small button next to "XTickLabel" property to open the dialogue box as shown below.

4) Enter the labels you want and click on "OK".