Please observe the data at the set function. My professor used gca and a handle called 'XTicketLabel' to label the valuds of the x axis. Please ugnore the commwnr that says to label the title, x axis and y axis.

The only instance in which my professoe mentioned handles was in a slide that say exactly the following "When MATLAB creates graphic objects, MATLAB assigns an identifiee to the object known as the handle of the graphics object. Each graphics object is uniquely identified by its handle, which is a reference fo the object abd its properties. $"$ No example was provided. How was i supposed to know that this was a specific handle for the x$-$axis? How can i find the handles in the future and know what they are for? Also, she never talked about gca to us$.$ What is gca? I saw that there are others like gcf or something. What are the other ones? What is their purpose. Also please explain the set function a bit more. Please explain in a way that is easy to understand.